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  1. Moon over Carson Range with Carson River, Nevada
  2. Storm clouds over the Colorado River at Horseshoe Bend near Page, Arizona
  3. Havasu Falls, Grand Canyon, Arizona
  4. Storm clouds over South Llano River, South Llano River State Park, Texas
  5. Full moon over Mono Lake with tufa towers and the eastern Sierra Nevada Mountains
  6. Teddy Bear Cholla under stormy skies, Joshua Tree National Park, California
  7. Violet Sabre-wing male hummingbird feeding at flower, Costa Rica
  8. Spring Mountains, Red Rock Canyon National Conservation Area near Las Vegas, Nevada
  9. Mammoth Peak, Upper Dana Meadow, Yosemite National Park, California
  10. Trumpeter Swan Flapping, Magness Lake, Arkansas
  11. Hoodoos In Winter, Bryce Canyon National Park
  12. Sandstone Cliff, Kodachrome Basin State Park, Utah
  13. Marsh at sunrise over Eagle Bay, St Joseph Peninsula, Florida
  14. Damselfish, Basslet School And Seaweed, Bohol Island, Philippines
  15. Prickly Poppy, Sand Bluebonnet, Pointed Phlox and Squaw-weed Hill Country, Texas
  16. Ruby Range, Lost Lake Slough, Colorado
  17. Old Faithful geyser spouting, Yellowstone National Park, Wyoming
  18. Coastal rocks, Bahia Honda Key, Florida
  19. Orange Sneezeweed and Delphinium in American Basin, Colorado
  20. Rio Chama in autumn, New Mexico
  21. Bridal Veil Falls, Yosemite National Park, California
  22. Siberian Tiger (Panthera tigris altaica) leaping across river, Asia
  23. Natural bridge on El Matador State Beach, California
  24. Snowy Owl adult amid dry grass, circumpolar species, British Columbia, Canada
  25. Opuntia cactus and other desert vegetation, Kofa National Wildlife Refuge, Arizona
  26. Shiprock, the basalt core of an extinct volcano, New Mexico
  27. Landscape view, Monument Valley Navajo Tribal Park, Arizona
  28. North Clear Creek Falls, Rio Grande National Forest, Colorado
  29. Green Sea Turtle (Chelonia mydas), Balicasag Island, Philippines
  30. Mt Rainier seen at sunrise, Mt Rainier National Park, Washington
  31. Mount Whitney and the Sierra Nevada from Alabama Hills, California
  32. Mt Rainier, Cascade Mountains, Washington
  33. La Plata River, La Plata Canyon, San Juan National Forest, Colorado
  34. Aspen (Populus tremuloides) forest in spring, Gunnison National Forest, Colorado
  35. Pyramid Mountain and forest reflected in Patricia Lake, Jasper National Park, Canada
  36. Yellow-bellied Slider turtle, portrait, on rock, North America
  37. Steaming hot springs, Midway Geyser Basin, Yellowstone National Park, Wyoming
  38. Crashing waves at Garrapata State Beach, Big Sur, California
  39. Palm trees line Penca Beach, Costa Rica
  40. Red Mountain gets its color from iron ore in the rock, Gray Copper Gulch, Colorado
  41. Green Sea Turtle (Chelonia mydas) and fish, Sabah, Malaysia
  42. Roatan Island, Honduras
  43. Moon setting, Playa Carillo, Guanacaste, Costa Rica
  44. Magnificent Hummingbird (Eugenes fulgens) female feeding at flower, Costa Rica
  45. Cottonwood Tree and Sandhill Crane flock, Bosque del Apache, New Mexico
  46. California Poppies in rocky grassland, Canyon Hills, Santa Ana Mountains, California
  47. Morro Rock at Morro Bay, California
  48. Mandarin Duck (Aix galericulata) male and female, Jurong Bird Park, Singapore