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  1. Rio Grande and the Sangre de Cristo Mountains, Colorado
  2. Big Sur coast near Grimes Point, California
  3. Joshua Trees And Little San Bernardino Mountains, Joshua Tree National Park, California
  4. Sawtooth Range and Stanley Lake Creek, Idaho
  5. Aspen trees in fall colors, Lost Lake, Gunnison National Forest, Colorado
  6. Timber Wolf (Canis lupus) portrait with snow on muzzle, Montana
  7. Atlantic coast from Cadillac Mountain, Acadia National Park, Maine
  8. Lunch Creek Cascades, Glacier National Park, Montana
  9. Lenticular clouds over Mt Dana Mt Gibbs and Mammoth Peak Yosemite National Park
  10. Colorado River From Deadhorse Point, Canyonlands National Park, Utah
  11. American Alligator in Nine-mile Pond, Everglades National Park, Florida
  12. Pine Tree At Night, Mount Scott, Wichita Mountains NWR, Oklahoma
  13. Cathedral Rock reflected in Oak Creek, Red Rock State Park near Sedona, Arizona
  14. Rufous Hummingbird (Selasphorus rufus) male feeding on flower nectar
  15. Moon over El Arco, Cabo San Lucas, Mexico
  16. Great Horned Owl adult perching in a snow-covered tree, British Columbia, Canada
  17. Andean Emerald (Amazilia franciae) hummingbird feeling on yellow flower, Ecuador
  18. Bobcat (Lynx rufus) mother and kittens, North America
  19. Brown Pelican (Pelecanus occidentalis) flying, North America
  20. California Poppy and Desert Bluebell flowers, Canyon Hills, California
  21. Aspens (Populus tremuloides) with snow, Gunnison National Forest, Colorado
  22. Timber Wolf (Canis lupus) portrait, howling in snow, North America
  23. Oak trees shrouded in fog, tallgrass prairie in Flint Hills, Kansas
  24. Rio Chama in autumn New Mexico
  25. Opuntia (Opuntia sp) in bloom, North America
  26. Oaks At Sunrise, Ochlockonee River State Park
  27. Saguaro and Teddybear Cholla amid flowering Lupine and California Brittlebush
  28. Opuntia (Opuntia sp) cactus, Chisos Mountains, Big Bend National Park, Texas
  29. Waterfall, Laurel Creek, Great Smoky Mountains National Park, Tennessee
  30. Claret Cup Cactus (Echinocereus triglochidiatus) flowers in bloom
  31. Saguaros At Sunset, Joshua Tree National Park, California
  32. Canadian Rocky Mountains dusted in snow, Banff National Park, Alberta, Canada
  33. Colorado River At Horseshoe Bend, Glen Canyon, Arizona
  34. Garrapata Creek flowing into the Pacific Ocean, Garrapata State Beach, Big Sur
  35. Memorial Point, Lake Tahoe, Nevada
  36. Great Horned Owl (Bubo virginianus) pale form, Kootenays, British Columbia, Canada
  37. Cathedral Rock reflected in Oak Creek, Red Rock State Park near Sedona, Arizona
  38. Aspen grove in fall colors, Washington Gulch, Gunnison National Forest, Colorado
  39. Haystack Mountain reflected in beaver pond, Maroon Bells, Snowmass Wilderness, Colorado
  40. Blue Ridge Range with autumn deciduous forest, near Buck Creek Gap, North Carolina
  41. Arch Rock and moon, Valley of Fire State Park, Nevada
  42. American Bison herd grazing on shortgrass praire near Scoria Point
  43. African Lion cubs resting on a rock, Hwange National Park, Zimbabwe
  44. Colorado Blue Columbine (Aquilegia caerulea) meadow at American Basin, Colorado
  45. Prickly Pear Cactus at Cerro Castellan, Big Bend National Park, Texas
  46. American Alligator in Nine-mile Pond, Everglades National Park, Florida
  47. Ocean waves, Hawaii
  48. Ponderosa Pine (Pinus ponderosa) forest in snow, Grand Canyon National Park, Arizona