usaz33457 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 usaz33463 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 sagu32819 Brittlebush and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32819.html sagu32816 Cactus and carpet of yellow wildflowers, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32816.html usaz33517 Multi-armed saguaro cactus, sunset, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33517.html sagu32850 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 sagu32828 Cholla cactus close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32828.html sagu32799 Royal lupine and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32799.html sagu32814 Grassy area near Mica View, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32814.html usaz33453 Cactus and annual flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33453.html sagu32810 Lupine, saguaro cactus, and occatillo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32810.html sagu32811 Sonoran desert in bloom, Tucson Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32811.html sagu32844 Tall saguaro cactus (scientific name: Carnegiea gigantea), Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32844.html sagu32846 Saguaro cacti on hillside, Hugh Norris Trail, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32846.html sagu32851 Saguaro cactus at sunset, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32851.html sagu32855 Twin cactus at dawn near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32855.html sagu32800 Phacelia and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32800.html sagu21018 Saguaro cactus silhouettes at sunset. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21018.html sagu32809 Cactus, royal lupine, and brittlebush. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32809.html usaz33454 Cactus, annual flowers, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33454.html sagu32847 Slope with saguaro cactus forest, Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32847.html sagu32843 Hiker and saguaro cactus, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32843.html sagu32838 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 sagu1229 saguaro cacti forest on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1229.html sagu32821 Saguaro cactus and desert in bloom near Valley View overlook. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32821.html sagu32826 Cholla cactus, phacelia, and brittlebush. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32826.html sagu1228 Moonrise behind saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1228.html sagu32817 Pink wildflowers and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32817.html usaz33452 Saguaro cacti. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33452.html sagu32842 Hillside in spring with desert annual flowers, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32842.html sagu32829 Teddy-bear cholla cactus close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32829.html sagu1239 Saguaro cactus blooming. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1239.html usaz33462 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 usaz33464 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 sagu32818 Brittlebush and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32818.html sagu32835 Mature Saguaro cactus (Carnegiea gigantea) on a hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32835.html sagu32858 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 sagu32860 Tall cactus and Tucson Mountains, early morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32860.html sagu32863 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 sagu32865 Rocks, flowers and cactus, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32865.html sagu32837 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 sagu32813 Wildflowers and cactus, Mica View, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32813.html sagu32834 Arm of a saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32834.html grca8484 Cactus and canyon walls, Tapeats Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8484.html sagu32864 Rocks, flowers and cactus near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32864.html usaz33459 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 sagu32801 Prickly ball on saguaro cactus, precursor of a new arm. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32801.html sagu32825 Brittlebush, cactus, and hills, Valley View overlook, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32825.html sagu32839 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 usaz8870 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 sagu32804 Circular Hohokam petroglyphs on Signal Hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32804.html sagu1233 Saguaro cactus and moon at dawn. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1233.html sagu32824 Bark of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32824.html sagu1222 Backlit Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1222.html sagu1237 Saguaro cactus blooms. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1237.html usaz8877 Saguaro cactus and moon. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8877.html sagu32822 Brittlebush and cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32822.html usaz33442 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 usaz8862 Cacti, Diablo Mountains, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8862.html usaz33466 Mexican Poppies and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33466.html usaz8869 Cactus and Sonoyta Valley, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8869.html sagu1238 Saguaro cactus flowers and arm. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1238.html sagu32815 Cactus and carpet of yellow wildflowers, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32815.html sagu32836 Multi-armed sagurao cactus near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32836.html sagu32854 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 usaz33472 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 sagu1232 Saguaro cactus and Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1232.html sagu1223 Backlit Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1223.html sagu1235 Saguaro cactus with blooms. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1235.html sagu1231 Palo verde and saguaro cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1231.html sagu1240 Saguaro cactus flowers against blue sky. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1240.html sagu2192 Saguaro cactus in bloom. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu2192.html usaz33451 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 usaz33439 Close-up of Ocatillo bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33439.html usaz33443 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 usaz33449 Saguaro cacti. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33449.html usaz33468 Mexican Poppies, lupine, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33468.html usaz33521 Old saguaro cacti, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33521.html usaz33510 Cholla cacti and Superstition Mountains, Lost Dutchman State Park, afternoon. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33510.html sagu32841 Cactus on hillside in spring, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32841.html sagu32861 Brittlebush and cactus near Ez-Kim-In-Zin, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32861.html grca8465 Barrel cacti close-up. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8465.html sagu1247 Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1247.html sagu2193 Saguaro cacti forest on hillside, late afternoon, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu2193.html sagu1225 Giant Saguaro cactus (scientific name: Carnegiea gigantea), mid-day. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1225.html sagu1243 Cactus detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1243.html usaz8863 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 sagu1236 Saguaro flower on top of cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1236.html sagu32802 Circular Hohokam petroglyph. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32802.html usaz8876 Paloverde and Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8876.html usaz33448 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.usaz33448.html sagu32849 Tall cactus on the slopes of Tucson Mountains, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32849.html sagu32827 Teddy-bear Cholla cactus and phacelia. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32827.html usaz8874 Detail of Organ Pipe Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8874.html usaz8873 Backlit cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8873.html usaz33520 Sun and Saguaro cactus, sunrise, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33520.html usaz33474 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 usaz33478 Saguaro cactus silhouetted at sunset. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33478.html usaz33519 Saguaro cactus and Superstition Mountains silhoueted at sunrise, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33519.html sagu1242 Saguaro cactus flower and bees. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1242.html sagu1241 Arms of blooming Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1241.html usaz33440 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 sagu32830 Skin of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32830.html usaz8878 Cacti, Diablo Mountains, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8878.html sagu1230 Saguaro cacti forest and occatillo on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1230.html usaz8875 Detail of Organ Pipe Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8875.html usaz33509 Tall cacti and Superstition Mountains, Lost Dutchman State Park, afternoon. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33509.html sagu1244 Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1244.html grca8464 Cacti in Surprise Valley, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8464.html usaz8872 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 sagu32805 Hohokam petroglyphs on Signal Hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32805.html sagu1246 Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1246.html sagu1226 Cholla cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1226.html sagu1227 Saguaro cactus and moon, dawn. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1227.html sagu1234 Arms of Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1234.html usaz33476 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 usaz33446 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 usaz33447 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 sagu32848 Hikers descending Hugh Norris Trail amongst saguaro cactus, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32848.html grca20091 Barrel cactus and Redwall from below. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20091.html sagu32853 Saguaro cactus at night with stary sky, Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32853.html usaz8868 Cactus and Sonoyta Valley, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8868.html sagu1250 Sotol, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1250.html usaz33467 Mexican Poppies, cactus, and Deablo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33467.html grca8472 Barrel cactus and Thunder Spring, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8472.html usaz33469 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 usaz8879 Cactus on hillside. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8879.html sagu32820 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 usaz33475 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 usaz33458 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 sagu32840 Mexican poppies and cactus squeleton. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32840.html sagu32833 Pencil cholla cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32833.html usaz8923 Cactus and wall, Old Tucson Studios. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.usaz8923.html sagu1248 Saguaro cactus trunk close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1248.html usaz33523 Old saguaro cacti, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33523.html sagu1249 Saguaro cactus trunk detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1249.html sagu32812 Apricot mellow and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32812.html usaz33471 Saguaro cactus, approaching storm. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33471.html usaz8865 Saguaro Cactus on hillside. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8865.html usaz33522 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 sagu32845 Hiking down Hugh Norris Trail amongst saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32845.html usaz8880 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 usaz8881 Saguaro and Ocotillo on a slope. 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Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33456.html usaz33455 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 usaz33470 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 usaz33518 Saguaro cactus silhoueted at sunset, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33518.html grca20086 Barrel cacti and Thunder Spring, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20086.html sagu21017 Saguaro cactus (Cereus giganteus), backlit with a rim of light. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21017.html sagu21015 Saguaro cactus forest on hillside, morning, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21015.html sagu21014 Saguaro cacti (scientific name: Carnegiea gigantea), late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21014.html sagu21012 Palo Verde and saguaro cactus on hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21012.html sagu21016 Ocatillo and saguaro cactus in valley. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21016.html sagu21013 Cactus forest on hillside, Gates pass, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21013.html sagu21011 Ocatillo and Saguaro cactus on hillside. 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