Interpretive sign near West entrance. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn59597.html Interpretive sign, Coyote Village. Mesa Verde National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.meve53378.html Interpretive signs, burned landscape. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca52784.html Interpretive sign, Painted Desert near Tawa Point. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo59489.html Interpretive sign, hills. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica56835.html Interpretive sign, Sage Creek badlands. Badlands National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.badl56715.html Interpretive sign, Wizard Island and Mount Scott. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57568.html Interpretive sign, monzogranite formation. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr55982.html Interpretive sign, Oasis de Mara. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr55956.html Interpretive sign, Sulfur Creek Goosenecks. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care57841.html Interpretive sign. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca53430.html interpretive sign, Miami in the distance. Biscayne National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.bisc56464.html Interpretive sign and Alpine Visitor Center window reflexion. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo57006.html Dune field interpretative sign. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa53692.html Interpretive sign, Roosevelt Elkhorn Ranch site. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56970.html Interpretive sign, Gore Range. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo57010.html Interpretive sign, Alaska range. Denali National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.dena52573.html Interpretive sign, Halemaumau crater. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55565.html Interpretive sign, Rankin Ridge view. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica56849.html Interpretive sign, forest and Alaska range. Denali National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.dena52563.html Interpretive sign, Fiery Furnace. Arches National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.arch57702.html Interpretive sign, Wizard Island and Llao peak. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57492.html Interpretive sign, Harbor Light, and fort Jefferson. Dry Tortugas National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.drto56383.html Interpretive sign, Chisos Mountains. Big Bend National Park, Texas, USA. http://www.terragalleria.com/parks/np-image.bibe52930.html Interpretive sign, Jasper Forest. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo59516.html Interpretive sign, Shark River Slough. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever56555.html Condor Craggs interpretive sign. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn57910.html Interpretive sign, Painted Canyon. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56946.html Interpretive sign, Parks. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo56983.html Interpretive sign, Sierra Del Carmen. Big Bend National Park, Texas, USA. http://www.terragalleria.com/parks/np-image.bibe52881.html Interpretive sign, Redwood Mountain. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica57147.html Interpretive sign, Iceberg Rock. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca52747.html Grandest View sign. Mesa Verde National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.meve53353.html Soft coral, Trunk Bay underwater trail interpretive sign. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60343.html Tree obscuring view, interpretive sign. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60137.html Leinster Bay and Narrows interpretive sign. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60210.html Repair Shop and Blacksmith interpretive sign, Hassel Island. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60235.html Railway and Steam Engine interpretive sign, Hassel Island. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60239.html Discovery View interpretive sign. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose60394.html Glacier Point lower terrace intepretive sign. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose60381.html Half Dome intepretive sign. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose60375.html Grassy waters intepretive sign, Pa-hay-okee. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever60112.html Picket Range interpretive sign, North Cascades National Park. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60400.html North Cascades Mountains interpretive signs, Lake Diablo overlook, North Cascades National Park Service Complex. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60404.html Shaping the Land interpretive sign at Lake Diablo overlook, North Cascades National Park Service Complex. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60405.html Reflection Lakes interpretive sign. Mount Rainier National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.mora60649.html Sol Duc River interpretive sign. Olympic National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.olym60697.html Enderts Beach, Seastacks interpretive sign. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61195.html Coastline and Sturdy survivors interpretive sign. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61177.html Pond and interpretive sign. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61197.html False Klamath Cover, Seastacks interpretive sign. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61198.html Redwood Creek watershed restoration interpretive sign. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61219.html Redwood Creek interpretive sign. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61227.html Holder for interpretive sign, Redwood Creek Overlook. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61220.html Desert Ecosystem interpretive sign. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61572.html Good neighbors interpretive sign. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61460.html Where have all the saguaro gone interpretive sign. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61461.html Invasive species interpretive sign, Ventura Harbor. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis61737.html Ventura Harbor interpretive sign. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis61620.html Distant view of the islands from harbor interpretive sign, visitor center. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis61739.html Sand Dunes Interpretive sign. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva61765.html Zabriskie Point Interpretive sign. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva61788.html Visitor Center, Native Landscape interpretive sign. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion61865.html Temples and Towers intepretive Sign. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62037.html Edge of the Plateau interpretive sign, Lava Point. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62030.html Thank you wildfire interpretive sign. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac62636.html Prairie Edge interpretive sign. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac62576.html Air quality interpretive sign. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ62732.html Largest tree on earth interpretive sign. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ62747.html Protecting Wilderness interpretive sign. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica62770.html Desert meets mountains interpretive sign. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba63193.html A Great Place to Call Home intepretive sign. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba63191.html Shrinking Teton Glaciers interpretive sign. Grand Teton National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.grte63208.html Stairs carved by meltwaters interpretive sign. Grand Teton National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.grte63209.html Living Color interpretive sign, Mammoth Hot Springs. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell63277.html Voyageurs interpretive sign. Voyageurs National Park, Minnesota, USA. http://www.terragalleria.com/parks/np-image.voya64130.html Denaina Storage Cache interpretive sign. Lake Clark National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.lacl63301.html Building the Country interpretive sign. Lake Clark National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.lacl63302.html Overflowing Ice interpretive sign. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj63614.html Exit Glacier was here interpretive sign. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj63574.html Living Laboratory interpretive sign. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj63577.html Wrangell Mountains interpretive sign. Wrangell-St Elias National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.wrst63482.html Mt Wrangell interpretive sign. Wrangell-St Elias National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.wrst63485.html Mt Blackburn interpretive sign. Wrangell-St Elias National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.wrst63486.html Valley of Ten Thousand Smokes intepretive sign. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63754.html Chain of Volcanoes intepretive sign. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63755.html Native dwelling interpretive sign. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63687.html Rock Harbor interpretive sign. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro64338.html Edisen Fishery interpretive sign. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro64278.html Moose and wolves interpretive sign. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro64339.html High Plateaus of Utah interpretive sign. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca64390.html Hike the Hoodoos Rim Trail interpretive sign. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca64380.html Lock interpretive sign. Cuyahoga Valley National Park, Ohio, USA. http://www.terragalleria.com/parks/np-image.cuva65682.html Boston Store interpretive sign. Cuyahoga Valley National Park, Ohio, USA. http://www.terragalleria.com/parks/np-image.cuva65683.html Many moods interpretive sign. Shenandoah National Park, Virginia, USA. http://www.terragalleria.com/parks/np-image.shen65576.html Sold on the steps of justice interpretive sign. Gateway Arch National Park, St Louis, Missouri, USA. http://www.terragalleria.com/parks/np-image.jeff65169.html Cave creation Interpretive sign. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca65495.html Wet place in a dry land Interpretive sign, Sloans Crossing Pond. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca65479.html Land of blue smoke interpretive sign, North Carolina. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65421.html Little Greenbrier School interpretive sign, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65400.html Back to Nature interpretive sign, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65394.html Restoring wetlands interpretive sign. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu66047.html Black Oak Savanna interpretive sign. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu66052.html From Shores to Summits interpretive sign, Cadillac Mountain. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad67003.html Islands Galore interpretive sign, Cadillac Mountain. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad67004.html Ancient climate interpretive sign. White Sands National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.whsa67302.html Just add water interpretive sign. White Sands National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.whsa67314.html Historic entrance interpretive sign. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca65537.html Painted Wall interpretive sign. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca65790.html Signs of the Seasons interpretive sign. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad66982.html Checkerboard Mesa interpretive sign. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion67271.html Signs of a Thriving People interpretive sign. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care67267.html