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  1. Cloud over White Sands National Monument, Chihuahuan Desert, New Mexico
  2. Hilda Peak, Icefields Parkway, Banff National Park, Alberta, Canada
  3. Moon and Twin Peaks reflected in lake, Colorado
  4. Kirk Creek Beach, Big Sur, California
  5. Morro Rock at Morro Bay, California
  6. Boulder and deciduous forest, Cades Cove, Great Smoky Mountains National Park, Tennessee
  7. Opuntia cactus and other desert vegetation, Kofa National Wildlife Refuge, Arizona
  8. Rocky outcroppings in El Malpais National Monument, New Mexico
  9. Ocotillo Saguaro, Greasewood and Palo Verde, Arizona
  10. Punchbowl Falls at Eagle Creek Columbia River Gorge Oregon
  11. Rufous Hummingbird feeding on the nectar of a Desert Figwort New Mexico
  12. African Elephant parents and two calves with Cattle Egret flock, Kenya
  13. Fresh water stream flowing into the Pacific Ocean, Zuma Beach, Malibu, California
  14. Rocks on Kirk Creek Beach, Big Sur, California
  15. Saguaro cacti and Brittlebush at Picacho Peak State Park, Arizona
  16. The Teton Range at String Lake, Grand Teton National Park, Wyoming
  17. North Clear Creek Falls, Rio Grande National Forest, Colorado
  18. Bobcat (Lynx rufus) mother and kitten in snowfall, North America
  19. Beach near San Simeon Creek with ice plant in the foreground, Big Sur, California
  20. Green Sea Turtle (Chelonia mydas) and fish, Sabah, Malaysia
  21. Red Rock Point, Georgian Bay, Lake Huron, Ontario, Canada
  22. Devil's Tower National Monument, sacred site for Native Americans, Wyoming
  23. Resplendent Quetzal (Pharomachrus mocinno) male, Costa Rica
  24. Colorful clouds against blue sky, New Mexico
  25. Pond and mountains, Maroon Bells-Snowmass Wilderness Area, Colorado
  26. Timber Wolf (Canis lupus) leaping over fallen log, North America
  27. Peregrine Falcon adult in protective stance standing on downed duck, North America
  28. Saguaro (Carnegiea gigantea) and Safford Peak, Saguaro National Park, Arizona
  29. Balancing rock formation, Guadalupe Mountains National Park, Texas
  30. Eagle Lake, Acadia National Park, Maine
  31. Quaking Aspen (Populus tremuloides) trees and Highland Peak, Colorado
  32. Eroded buttes in desert, Bryce Canyon National Park, Utah
  33. California Poppy and Desert Bluebell flowers, Antelope Valley, California
  34. Siberian Tiger (Panthera tigris altaica) running, native to Russia
  35. Pond near East Beckwith Mountain, West Elk Wilderness, Colorado
  36. Sand dunes and mountains, Great Sand Dunes National Monument, Colorado
  37. Dwarf Cypress Along Lake Pontchartrain, Fontainbleu State Park, Louisiana
  38. Giraffe (Giraffa camelopardalis) mother with young, Kenya
  39. Palm trees line Pelada Beach, Costa Rica
  40. Joshua Tree (Yucca brevifolia) at Red Rock State Park, California
  41. Toroweap Overlook with a view of the Colorado River, Grand Canyon National Park, Arizona
  42. View over foothills to the west from Kings Canyon National Park, California
  43. Coconut Palm (Cocos nucifera) trees, Pamilacan Island, Bohol Island, Philippines
  44. Sunset over river and peaks in Moraine Park, Rocky Mountain National Park, Colorado
  45. Bristlecone pine, Mt Evans, Colorado
  46. Totem Pole and Yei Bi Chei with sand dunes and shrubs, Monument Valley, Arizona
  47. Quaking Aspen (Populus tremuloides) trees in fall, Maroon Bells, Colorado
  48. Ranger Peak and Aspen forest in autumn, Grand Teton National Park, Wyoming