Desert in bloom with britlebush, saguaro cactus, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33457.html Organ pipe cacti on slope in spring. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33463.html Multi-armed saguaro cactus, sunset, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33517.html Tall saguaro cactus on the slopes of Tucson Mountains, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32850.html Cactus and carpet of yellow wildflowers, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32816.html Saguaro cactus at sunset, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32851.html Grassy area near Mica View, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32814.html Cactus and annual flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33453.html Lupine, saguaro cactus, and occatillo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32810.html Sonoran desert in bloom, Tucson Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32811.html Twin cactus at dawn near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32855.html Badlands at sunset, Painted Desert. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20120.html Petrified log section in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20127.html Petrified logs in Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20126.html Blue Mesa basin at dusk. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20122.html Colorful fossilized wood section from Triassic Era and badlands. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20130.html Petrified log and prehistoric-looking badlands. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20131.html View from North Window at dusk. Monument Valley Tribal Park, Navajo Nation, Arizona and Utah, USA http://www.terragalleria.com/america/arizona/monument-valley/picture.usaz20200.html Cactus, royal lupine, and brittlebush. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32809.html Cactus, annual flowers, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33454.html Saguaro cacti on hillside, Hugh Norris Trail, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32846.html Slope with saguaro cactus forest, Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32847.html Hiker and saguaro cactus, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32843.html Lush desert with Cactus, mexican poppies, and palo verde near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32838.html Painted desert seen from Chinde Point, stormy sunset. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20121.html Ridges over badlands of Painted Desert, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20117.html Saguaro cactus silhouettes at sunset. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21018.html saguaro cacti forest on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1229.html Saguaro cactus and desert in bloom near Valley View overlook. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32821.html Cholla cactus, phacelia, and brittlebush. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32826.html Temples at Dawn from Yvapai Point. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0698.html Moonrise behind saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1228.html Fossilized log in Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20128.html Roots, red earth, and Mittens. Monument Valley Tribal Park, Navajo Nation, Arizona and Utah, USA http://www.terragalleria.com/america/arizona/monument-valley/picture.usaz20203.html Temples at Dawn from Yvapai Point. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0699.html Cliffs and Angel's Arch near Cape Royal, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5508.html Saguaro cacti. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33452.html Hillside in spring with desert annual flowers, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32842.html Tall saguaro cactus (scientific name: Carnegiea gigantea), Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32844.html Moonrise, Point Imperial. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8500.html View from Yvapai Point, sunrise. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0012.html Carpet of Arizona Lupine, Desert Dandelion, and Brittlebush near the Southern Entrance. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32773.html Cactus, field of brittlebush in bloom, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33462.html Slope with cactus and brittlebush, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33464.html Mature Saguaro cactus (Carnegiea gigantea) on a hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32835.html Brittlebush and backlit cactus at sunrise near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32858.html Tall cactus and Tucson Mountains, early morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32860.html Rocks, flowers and cactus with Panther Peak and Safford Peak in the background. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32863.html Rocks, flowers and cactus, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32865.html Cactus lupine, and mexican poppies with Panther Peak in the background, afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32837.html Wildflowers and cactus, Mica View, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32813.html Arm of a saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32834.html Triassic Era petrified logs and Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20125.html Wotan's Throne seen from Cape Royal, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5506.html Canyon walls seen from Tapeats Creek, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8485.html View from Vista Encantada, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5510.html Cactus and canyon walls, Tapeats Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8484.html Rocks, flowers and cactus near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32864.html Cracked rocks and Colorado River at Toroweap, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5493.html Watchtower, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0706.html Badlands of Chinle Formation seen from Whipple Point, stormy sunset. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5569.html Ridges from Bright Angel Point, sunrise. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0703.html Granite Gorge, dusk. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0710.html Cactus, field of brittlebush in bloom, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33459.html Multi-hued badlands of Blue Mesa, sunset. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo0719.html View from Point Imperial, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5512.html Desert View, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0700.html View from Point Imperial, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5513.html View from Point Sublime, dusk. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5521.html Colorado River from South Rim. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0704.html Red wall, Thunder Spring and Tapeats Creek, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8476.html Flowers and wall in Surprise Valley near Tapeats Creek, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8468.html Towers seen from Point Sublime, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5519.html View from Point Imperial, sunrise. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5523.html Flowers and mesas in Surprise Valley near Tapeats Creek, dusk. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8469.html Erosion patterns near Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo0724.html Brittlebush, cactus, and hills, Valley View overlook, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32825.html Cactus, mexican poppies, and palo verde near Ez-Kim-In-Zin, afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32839.html Agate House, reconstitution of native house made of petrified wood. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5603.html Organ Pipe cactus silhouetted at sunset. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8870.html Circular Hohokam petroglyphs on Signal Hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32804.html Saguaro cactus and moon at dawn. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1233.html Man standing at edge of Grand Canyon at Toroweap, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5499.html Bark of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32824.html Cliffs seen from Point Imperial at sunrise. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5522.html Mount Hayden from Point Imperial, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5504.html Backlit Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1222.html View from Hopi point, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0701.html Saguaro cactus blooms. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1237.html Saguaro cactus and moon. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8877.html Brittlebush and cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32822.html Painted Desert, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo0720.html Saguaro cacti forest on hillside, Tucson Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1221.html Granite Gorge, afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0709.html Petrified wood cross-secton close-up. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5562.html Colorful slices of petrified wood and badlands in Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5594.html Chain fruit cholla cactus and brittlebush in bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33442.html Petrifieds logs and Blue Mesa, mid-day. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5578.html Cacti, Diablo Mountains, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8862.html Sage flowers, wall, and cloud, Surprise Valley, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8467.html View from Bright Angel Point. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8501.html Bright Angel Point, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8502.html Distant cliffs seen from Cape Royal, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5507.html Hiker looking down into Grand Canyon at Toroweap, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5498.html Mexican Poppies and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33466.html Mud, sandstone and volcanic ash color painted desert, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20118.html Pedestal petrified log in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5585.html Cactus and Sonoyta Valley, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8869.html Havasu creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5864.html Saguaro cactus flowers and arm. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1238.html Cactus and carpet of yellow wildflowers, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32815.html Wotan's Throne seen from Cape Royal, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5505.html Agate House built with fossilized wood. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5604.html Multi-armed sagurao cactus near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32836.html Dense saguaro cactus forest at sunrise near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32854.html Mount Hayden from Point Imperial, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5503.html Close up of small pieces of petrified wood and clay pattersn. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5595.html Brittlebush, cactus, storm clouds, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33472.html Multi-hued badlands of Painted desert seen from Chinde Point. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5572.html Cliff and Colorado River at Toroweap, sunrise. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5496.html Saguaro cactus and Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1232.html Painted desert seen from Lacey Point, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5567.html Painted Desert at sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0705.html Confluence of Tapeats Creek and Thunder River. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8482.html Backlit Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1223.html Dendritic drainage patterns, Blue Mesa, mid-day. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5579.html View from Roosevelt Point, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5511.html Rock art on Newspaper Rock. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5574.html Last light, Long Logs area, sunset. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5602.html Painted desert seen from Chinde Point, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5566.html Palo verde and saguaro cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1231.html Base of organ pipe cactus and yellow brittlebush flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33451.html Chain fruit cholla cacti, organ pipe cacti, and brittlebush in bloom on hill. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33443.html Saguaro cacti. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33449.html Old saguaro cacti, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33521.html Cholla cacti and Superstition Mountains, Lost Dutchman State Park, afternoon. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33510.html Cactus on hillside in spring, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32841.html Brittlebush and cactus near Ez-Kim-In-Zin, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32861.html Long petrified log, and Chinle Formation rocks, Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20129.html Cliffs near Cape Royal, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5509.html Colorful fossilized logs in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5583.html Barrel cacti close-up. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8465.html Giant Saguaro cactus (scientific name: Carnegiea gigantea), mid-day. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1225.html Red hills of Painted desert seen from Tawa Point. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5565.html Saguaro cacti forest on hillside, late afternoon, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu2193.html Bridger Knoll and burned slope from Monument Point, morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8460.html Organ Pipe Cactus (Stenocereus thurberi) and Diablo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8863.html Erosion formations in Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo0722.html Multi-hued slices of petrified wood and mudstone hills, Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5599.html Tall cactus on the slopes of Tucson Mountains, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32849.html Painted Desert, early morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20119.html Saguaro cacti forest on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1220.html Backlit cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8873.html Sun and Saguaro cactus, sunrise, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33520.html Barrel cactus, Ajo Mountains, and dark clouds. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33474.html Saguaro cactus silhouetted at sunset. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33478.html Saguaro cactus and Superstition Mountains silhoueted at sunrise, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33519.html Saguaro cactus flower and bees. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1242.html Arms of blooming Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1241.html Organ pipe cactus and brittlebush on hillside, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33440.html Skin of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32830.html View from Ford point, late afternoon. Monument Valley Tribal Park, Navajo Nation, Arizona and Utah, USA http://www.terragalleria.com/america/arizona/monument-valley/picture.usaz20199.html Dunes and bushes. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz20192.html Agave flower skeletons in Surprise Valley, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8463.html Cacti, Diablo Mountains, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8878.html Saguaro cacti forest and occatillo on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1230.html Visitor sitting on edge of Grand Canyon, Toroweap. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5500.html Detail of Organ Pipe Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8875.html Painted desert seen from Lacey Point, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5568.html Painted desert seen from Chinde Point, stormy sunset. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5571.html Tall cacti and Superstition Mountains, Lost Dutchman State Park, afternoon. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33509.html Colorful petrifieds logs in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5588.html Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1244.html Red slices of petrified wood and blue clay, Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5600.html Tapeats Creek, dusk. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8486.html Arizona Lupine, Desert Dandelion, Chia, and Brittlebush, near the Southern Entrance. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32768.html Cacti in Surprise Valley, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8464.html Colorful petrifieds logs in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5584.html Long Logs area, morning. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5590.html Ocotillo and cactus on a slope. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8872.html Red wall seen from Surprise Valley, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8466.html Multi-hued large petrified logs and badlands in Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5591.html Hohokam petroglyphs on Signal Hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32805.html Colorful slices of petrified wood and badlands in Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5598.html Cholla cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1226.html White House Ancestral Pueblan ruins and wall with desert varnish and corner of sky. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8907.html Colorful large fossilized logs and badlands of Chinle Formation, Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5592.html Tapeats Creek, dusk. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8470.html Fossilized wood on soft layer of earth made of mud, sand, and ash. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5601.html Painted desert seen from Tiponi Point, dawn. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5563.html Close up of small pieces of petrified wood. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5596.html Saguaro cactus and moon, dawn. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1227.html Red hills of Painted desert seen from Tawa Point. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5564.html Desert Bighorn sheep, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.usaz8915.html Group of saguaro cactus in spring, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33476.html Cactus and brittlebush in the spring under cloudy skies, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33446.html Organ pipe cactus and brittlebush (Encelia farinosa) in bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33447.html Hikers descending Hugh Norris Trail amongst saguaro cactus, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32848.html Brittlebush and ocotilo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32831.html Brittlebush and ocotilo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32832.html Barrel cactus and Redwall from below. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20091.html Blue Mesa basin at sunset. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20123.html Clay pattern on floor and buttes in winter. Monument Valley Tribal Park, Navajo Nation, Arizona and Utah, USA http://www.terragalleria.com/america/arizona/monument-valley/picture.usaz20197.html Canyon at dusk. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz20193.html Saguaro cactus at night with stary sky, Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32853.html Cactus and Sonoyta Valley, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8868.html Sotol, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1250.html Blue Mesa badlands and pedestal fossilized log, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5587.html Barrel cactus and Thunder Spring, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8472.html Layers of Supai from edge of Esplanade. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8499.html Painted desert seen from Chinde Point, dusk. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5573.html Desert Dandelion and Arizona Lupine close-up. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32772.html Backpacker on trail above Tapeats Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8518.html Esplanade, mid-day. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8461.html Eroded badlands of Chinle Formationon, Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5582.html Pedestal petrified log in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5586.html Havasu Indian on horse in Havasu Canyon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0718.html Havasu Indians commute by helicopter to roadless village. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0717.html Arms of Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1234.html Close-up of flower carpet of Arizona Lupine, Desert Dandelion, Chia, and Brittlebush, near the Southern Entrance. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32769.html Colorful fossilized log close-up. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo0726.html Close-up of Mexican Poppies (Eschscholzia californica subsp. mexicana) and Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33469.html Close-up of wildflower carpet of Arizona Lupine, Desert Dandelion, Chia, and Brittlebush, near the Southern Entrance. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32770.html Cactus on hillside. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8879.html Backpackers in Surprise Valley, Thunder River and Deer Creek trail. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8514.html Saguaro cactus silhouetted on hill at sunrise near Valley View overlook. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32820.html Badlands and Dendritic drainage patterns, Blue Mesa, mid-day. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5581.html Multi-armed saguaro cactus in spring, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33475.html Group of Saguaro cactus amongst flowering brittlebush. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33458.html Mexican poppies and cactus squeleton. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32840.html Pencil cholla cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32833.html Canyon walls from Bright Angel Point, sunrise. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20112.html Hohokam petroglyphs. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32803.html Saguaro cactus trunk close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1248.html Old saguaro cacti, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33523.html Arizona Lupine, Desert Dandelion, with Brittlebush and Cottonwood Mountains. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32771.html Saguaro cactus trunk detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1249.html Petrified logs and Blue Mesa, mid-day. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5576.html Bentonite and volcanic ash badlands in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo2214.html Saguaro cactus, approaching storm. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33471.html Fossilized logs and Blue Mesa, mid-day. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5577.html Saguaro Cactus on hillside. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8865.html Occatillo detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1245.html Cactus Wren nesting in a cavity of a saguaro cactus, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33522.html Hiking down Hugh Norris Trail amongst saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32845.html Grasses and sand dunes. Monument Valley Tribal Park, Navajo Nation, Arizona and Utah, USA http://www.terragalleria.com/america/arizona/monument-valley/picture.usaz20198.html Triassic Era large petrified logs and badlands, Long Logs area. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5593.html Backpackers on Esplanade, Thunder River and Deer Creek trail. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8513.html Pedestal petrified log in Blue Mesa, afternoon. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5589.html Ocotillo and cactus on a slope. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8880.html Backpacker on switchbacks above Tapeats Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8515.html Solo Backpacker above Thunder River. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8516.html Dendritic drainage patterns, Blue Mesa, mid-day. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo5580.html Base of organ pipe cactus and yellow brittlebush flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33450.html Brittlebush (Encelia farinosa) flowers and organ pipe cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33477.html Brittlebush and cactus at sunrise near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32856.html Brittlebush and Saguaro cactus near Ez-Kim-In-Zin, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32862.html Agave flower skeletons and mesas in Surprise Valley. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20085.html Colorful bentonite badlands, Blue Mesa. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo20124.html Verdant desert valley bottom with cactus, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33441.html Saguaro cacti and brittlebush in bloom, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33445.html Hillside with cactus and brittlebush in bloom, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33465.html Britlebush (Encelia farinosa) in bloom, saguaro cactus, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33456.html Britlebush in bloom, saguaro cactus, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33455.html Hillside wih cactus and brittlebush in spring, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33470.html Saguaro cactus silhoueted at sunset, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33518.html Entrance of Deer Creek Narrows. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20099.html Havasu Canyon, afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20101.html View from Point Sublime, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20108.html Deer Creek Falls. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20096.html Barrel cacti and Thunder Spring, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20086.html Saguaro cactus (Cereus giganteus), backlit with a rim of light. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21017.html Saguaro cactus forest on hillside, morning, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21015.html Saguaro cacti (scientific name: Carnegiea gigantea), late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21014.html Palo Verde and saguaro cactus on hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21012.html Ocatillo and saguaro cactus in valley. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21016.html Cactus forest on hillside, Gates pass, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21013.html Ocatillo and Saguaro cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21011.html Cactus and Puerto Blanco Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20165.html Ocotillo and cactus on a slope. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20166.html Organ Pipe cactus and Ajo Range, late afternoon. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20167.html Organ Pipe Cactus and Saguaro. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20168.html