Rainbow over Great Sand Dunes National Park, San Luis Valley, Colorado. (Scenic442)
Bull Elk (Cervus elaphus) on tundra, Colorado. (Elk013)
Sand Creek, Great Sand Dunes National Park, San Luis Valley. (Dunes040)
Snowy scene. (090427-6152)
Medano Zapata barn. (MedanoZapata005)
Broad-tailed hummingbird female gathering nest material from cattail, Colorado. (Hummer052)
Rabbitbrush (Chrysothamnus viscidiflorus). (Flowers127)
Double rainbow. (Atmosphere017)
Photographic floating blind. (People033)
Rocky mountain sky. (Atmosphere010)
Fall foliage and valley view, Roan Plateau, Colorado. (RoanPl009)
Lodgepole pine killed by bark beetle (Dendroctonus ponderosae). (080828-0702)
Herd of mule deer against Denver skyline from Rocky Mountain Arsenal National Wildlife Refuge, Denver, Colorado. (Deer-Skyline_130115)
Pine beetle (Dendroctonus ponderosae) killed trees. (080928-3503)
Bull Elk (Cervus elaphus) battling in autumn rut, Colorado. (Elk6965)
Aspen trees in autumn. (081013-8454)
Backlit mule deer buck in velvet, Denver, Colorado. (Deer079)
Great blue heron in wetlands near Great Sand Dunes National Park, San Luis Valley, Colorado. (MedanoZapata004)
Sand Creek sunset, Great Sand Dunes National Park, San Luis Valley. (Dunes090)
Rock formation, Corral Bluffs. (081130-05722)
Aspen trees in Autumn. (081012-8207)
Rainbow over forest, North Park. (Atmosphere013)
Western bluebirds building nest in nest box. (Birds264)
Cumulus clouds. (Atmosphere001)
Bison bulls in front of sand dunes, San Luis Valley, Colorado. (Dunes004)
Flock of sandhill cranes parachuting in for a landing at sunset, San Luis Valley, Colorado. (Crane039)
Pine beetle (Dendroctonus ponderosae) killed trees. (080928-1726)
Dunes and sunflowers in Great Sand Dunes National Park, San Luis Valley, Colorado. (Dunes020)
Mountains at sunset. (Atmosphere004)
Bison calf jumping over creek, Colorado. (Bison012)
Blanca Wetlands near Great Sand Dunes National Park, San Luis Valley, Colorado. (080811-1060)
Pine beetle (Dendroctonus ponderosae) killed trees. (080928-3514)
Cumulus clouds. (Atmosphere012)
Prairie sunflowers. (Dunes167)
Herd of Mule Deer (Odocoileus hemionus) walking past Great Blue Heron (Ardea herodias) in Cherry Creek Reservoir. (100902-9717)
Iris, L Cross Ranch, Colorado. (Scenic445)
Rock formation. (090508-6242)
Long's Peak covered by clouds. (Atmosphere008)
Dinosaur tracks in Picketwire Canyonlands, Southeast, Colorado. (071004-2502)
Bovine grazing on grasslands. (SEColorado7307)
Rocky Mountain National Park, sunrise silhouette, Colorado. (Scenic030)
Prairie sunflowers (Helianthus petiolaris) growing on sand dune at Great Sand Dunes National Park, San Luis Valley. (Dunes081)
Rain clouds. (Atmosphere005)
North clear creek falls, Colorado. (Scenic450)
Pine beetle (Dendroctonus ponderosae) killed trees. (080928-1735)
Rowers in Cherry Creek State Park, Denver, Colorado. (101024-0686)
Little Spring Creek, sand dunes, San Luis Valley. (MedanoZapata013)
Lightning. (Atmosphere015)
Lodgepole pines killed by bark beetle (Dendroctonus ponderosae). (080828-0697)
Swirling Aspen Leaves, San Luis Valley, Colorado. (Dunes009)
Blowing snow, Great Sand Dunes National Park, San Luis Valley. (Dunes034)
Great Sand Dunes National Park, San Luis Valley. (Dunes121)
Elk Herd grazing on town golf course. Colorado. (Urban001)
Mule deer (Odocoileus hemionus) in prairie sunflowers, Great Sand Dunes National Park, San Luis Valley, Colorado. (Dunes060)
Greater sandhill cranes leave night roost as sun rises through fog. Monte Vista National Wildlife Refuge, San Luis Valley, Colorado. (Dunes011)
Pine beetle (Dendroctonus ponderosae) killed trees. (080928-3513)
Little Spring Creek, sand dunes, San Luis Valley. (MedanoZapata010)
GOLDEN SUNRISE
Sunrise on the prairie, Colorado. (CanGeese001)
Elk (Cervus elaphus) herd below Long's Peak, Colorado. (Elk051)
Snowy scene. (090427-6152)
Great Sand Dunes National Monument. (Dunes111)
Pine beetle (Dendroctonus ponderosae) killed pine trees. (081006-1904)
Red Fox (Vulpes vulpes) standing in front of Yield sign. (Fox081)
Snow on fall aspen trees along creek, San Luis Valley. (Dunes113)
Great Sand Dunes National Park, San Luis Valley, Colorado. (Scenic5183)
Dinosaur tracks in Picketwire Canyonlands, Southeast, Colorado. (071004-2532)
Challenger Point. (Baca009)
Birdwatchers at Barr Lake State Park. (BarrLake004)
Southeast Colorado is subject to severe drought, however, deep winter snows plus heavy spring rains made 2007 an extraordinary year for wildflowers. Pinon Canyon Expansion Area, Indian paintbrush and gunnison mariposa lily. (SEColorado7091)
Colorado aletes. (Flowers068)
Dust storm. (Atmosphere016)
Red aspen after autumn snowstorm in San Luis Valley. (Dunes103)
Broad-tailed Hummingbird feeding at Rocky Mountain Bee Plant (Cleome serrulata) at Great Sand Dunes National Park in Colorado's San Luis Valley. (Dunes057)
Sunset at Great Sand Dunes National Park. (Dunes062)
Smoky sky. (Atmosphere022)
Fourteener Kit Carson Peak. (Dunes015)
Prairie sunflowers (Helianthus petiolaris). (Dunes150)
Pinon Canyon Expansion Area. (SEColorado7280)
Pinon Canyon Expansion Area. (SEColorado7286)
Petroglyph. (SEColorado2592)
Rock formation, Corral Bluffs. (081130-04909)
Long's Peak, Rocky Mountains. (090422-6141)
Aspen trees in Autumn. (081012-8231)
Cumulus clouds. (Atmosphere003)