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  1. Bald Cypress at upper Blue Basin, Reelfoot National Wildlife Refuge, Tennessee
  2. Beach near San Simeon Creek with ice plant in the foreground, Big Sur, California
  3. Birch forest, Pictured Rocks National Lakeshore, Michigan
  4. Bixby Bridge, Big Sur, California
  5. California Poppy and Desert Bluebells carpeting a spring hillside, California
  6. Cascades at Emerald Pools, Zion National Park, Utah
  7. Cascades at Emerald Pools, Zion National Park, Utah
  8. Cathedral Rock reflected in Oak Creek, Red Rock State Park near Sedona, Arizona
  9. Cedar Creek flowing through deciduous forest, Petit Jean State Park, Arkansas
  10. Cinder Cones and Joshua Trees, Mojave National Preserve, California
  11. Claret Cup Cactus and Verbena, detail of flowers in bloom, North America
  12. Cloud over White Sands National Monument, Chihuahuan Desert, New Mexico
  13. Cottonwood (Populus sp) trees, fall foliage, Carson Valley, Nevada
  14. Cottonwood trees and Willows, Bosque del Apache National Wildlife Refuge, New Mexico
  15. Court of the Patriarchs rising above river, Zion National Park, Utah
  16. Crescent moon over El Matador Beach, Malibu, California
  17. Devil's Garden sandstone formations, Escalante National Monument, Utah
  18. Dream Lake, Rocky Mountain National Park, Colorado
  19. Elephant Rock, a unique sandstone formation, Valley of Fire State Park, Nevada
  20. Firehole river, Yellowstone National Park, Wyoming
  21. Fremont Cottonwood tree, White Sands National Monument, Chihuahuan Desert New Mexico
  22. Full moon over Mono Lake with tufa towers and Sierra Nevada Mountains, California
  23. Geissler Mountain reflected in Linkins Lake, Colorado
  24. Gothic Mountain and Beaver Lodge, near Crested Butte, Colorado
  25. Grand Canyon, Grand Canyon National Park, Arizona
  26. Gunnison National Forest in fall, Colorado
  27. Gypsum dunes, Guadalupe Mountains National Park, Texas
  28. Hot Creek at sunset, eastern Sierra Nevada, California
  29. Ice on the Colorado River beneath sandstone cliffs, Cataract Canyon, Utah
  30. La Sal Mountains and Globemallows, Salt Valley, Arches National Park, Utah
  31. Laurel Mountain and Convict Lake, eastern Sierra Nevada, California
  32. Little Missouri River, Theodore Roosevelt National Park, North Dakota
  33. Lone pine tree with East and West Temples in the background, Zion National Park, Utah
  34. Lower Yellowstone Falls and Grand Canyon of Yellowstone National Park, Wyoming
  35. Lower Yellowstone Falls, Yellowstone National Park, Wyoming
  36. Lunch Creek Cascades, Glacier National Park, Montana
  37. Boulder and deciduous forest, Cades Cove, Great Smoky Mountains National Park, Tennessee
  38. Camel Butte rising from the desert floor, Monument Valley, Arizona
  39. Chisos Agave (Agave havardiana) and the Chisos Mountains, Big Bend National Park, Texas
  40. Dolomite Peak and Bow River backwaters, Banff National Park, Alberta
  41. Field of sunflowers, Flint Hills National Wildlife Refuge, Kansas
  42. Full moon over boulders at El Pescador State Beach, Malibu, California
  43. Geissler Mountain and Linkins Lake, Colorado
  44. Mammoth Peak, Upper Dana Meadow, Yosemite National Park, California
  45. Maroon Bells and Maroon Creek in autumn, Colorado
  46. Marsh, Padre Island National Seashore, Texas
  47. Memorial Point, Lake Tahoe, Nevada
  48. Memorial Point, Lake Tahoe, Nevada