Edited by Mike Jackson, and Emmett Clarkin, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Bryant Olsen, some rights reserved (CC BY-NC)
- 2. (c) Josh*m, some rights reserved (CC BY-NC-SA)
- 3. (c) Dietmut Teijgeman-Hansen, some rights reserved (CC BY-NC-ND)
- 4. (c) whinaem, some rights reserved (CC BY-NC)
- 5. (c) Matt Bowser, some rights reserved (CC BY), uploaded by Matt Bowser
- 6. (c) Keith W. Larson, some rights reserved (CC BY-NC), uploaded by Keith W. Larson
- 7. (c) Cécile Bassaglia, some rights reserved (CC BY-NC-SA)
- 8. (c) Salomé, some rights reserved (CC BY-NC-SA)
- 9. (c) Susan, some rights reserved (CC BY-NC), uploaded by Susan
- 10. (c) Lewnanny Richardson, some rights reserved (CC BY-NC), uploaded by Lewnanny Richardson
- 11. (c) Tab Tannery, some rights reserved (CC BY-NC-SA)
- 12. (c) Samuel Brinker, some rights reserved (CC BY-NC), uploaded by Samuel Brinker
- 13. (c) Kari Pihlaviita, some rights reserved (CC BY-NC)
- 14. (c) Kim Hansen, some rights reserved (CC BY-SA)
- 15. (c) Paul Norwood, some rights reserved (CC BY-NC), uploaded by Paul Norwood
- 16. (c) William Van Hemessen, some rights reserved (CC BY-NC), uploaded by William Van Hemessen
- 17. (c) Shawn Billerman, some rights reserved (CC BY-NC), uploaded by Shawn Billerman
- 18. (c) judith holm, some rights reserved (CC BY-NC-ND), uploaded by judith holm
- 19. (c) Boris Bolshakov, some rights reserved (CC BY-NC), uploaded by Boris Bolshakov
- 20. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 21. (c) Dawn Endico, some rights reserved (CC BY-SA)
- 22. (c) Trevor Partridge, some rights reserved (CC BY-NC), uploaded by Trevor Partridge
- 23. (c) jozien, some rights reserved (CC BY-NC), uploaded by jozien
- 24. (c) --Tico--, some rights reserved (CC BY-NC-ND)
- 25. (c) _foxy, some rights reserved (CC BY-NC)
- 26. (c) Lars Emil S. Feldager, some rights reserved (CC BY-NC), uploaded by Lars Emil S. Feldager
- 27. (c) AnneTanne, some rights reserved (CC BY-NC-SA)
- 28. (c) Alan J. Hahn, some rights reserved (CC BY-NC)
- 29. (c) Peter Stevens, some rights reserved (CC BY)
- 30. no rights reserved
- 31. (c) Anthony B. Zerafa, some rights reserved (CC BY-NC), uploaded by Anthony B. Zerafa
- 32. (c) Matt Lavin, some rights reserved (CC BY-SA)
- 33. (c) David McCorquodale, some rights reserved (CC BY), uploaded by David McCorquodale
- 34. (c) c michael hogan, some rights reserved (CC BY-NC-SA), uploaded by c michael hogan
- 35. (c) Heather Pickard, some rights reserved (CC BY-NC), uploaded by Heather Pickard
- 36. (c) Susan Elliott, some rights reserved (CC BY-NC), uploaded by Susan Elliott
- 37. (c) Bart Busschots, some rights reserved (CC BY-NC-ND)
- 38. (c) Travis, some rights reserved (CC BY-NC)
- 39. (c) Rosemary J. Smith, some rights reserved (CC BY-NC), uploaded by Rosemary J. Smith
- 40. (c) Kari Pihlaviita, some rights reserved (CC BY-NC), uploaded by Kari Pihlaviita
- 41. (c) rpernick, some rights reserved (CC BY-NC), uploaded by rpernick
- 42. (c) Anders Lanzen, some rights reserved (CC BY-NC-SA)
- 43. (c) Mathew Zappa, some rights reserved (CC BY), uploaded by Mathew Zappa
- 44. (c) alpros, some rights reserved (CC BY-NC-ND)
- 45. (c) Joan Simon, some rights reserved (CC BY-SA)
- 46. (c) Jason Hollinger, some rights reserved (CC BY)
- 47. (c) Denali National Park and Preserve, some rights reserved (CC BY)
- 48. (c) Lars Falkdalen Lindahl, some rights reserved (CC BY-NC-SA)
- 49. (c) Four Corners School of Outdoor Education, some rights reserved (CC BY-ND)
- 50. (c) Anders Sandberg, some rights reserved (CC BY)
- 51. (c) Hörður Kristinsson, some rights reserved (CC BY-NC)
- 52. (c) Mary Krieger, some rights reserved (CC BY), uploaded by Mary Krieger
- 53. (c) Peter O, some rights reserved (CC BY-SA)
- 54. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 55. (c) Bas Kers (NL), some rights reserved (CC BY-NC-SA)
- 56. (c) Superior National Forest, some rights reserved (CC BY)
- 57. (c) Alastair Rae, some rights reserved (CC BY-SA)
- 58. (c) Bruce Bennett, some rights reserved (CC BY-NC), uploaded by Bruce Bennett
- 59. (c) Sean Blaney, some rights reserved (CC BY-NC), uploaded by Sean Blaney
- 60. (c) Sergey Yeliseev, some rights reserved (CC BY-NC-ND)
- 61. (c) H. Zell, some rights reserved (CC BY-SA)
- 62. (c) Alinja, some rights reserved (CC BY-SA)
- 63. (c) Joe Walewski, some rights reserved (CC BY-NC), uploaded by Joe Walewski
- 64. (c) aroy3, some rights reserved (CC BY-NC)
- 65. (c) Jim Frazier, some rights reserved (CC BY-NC-ND)
- 66. (c) John Tann, some rights reserved (CC BY)
- 67. (c) Jordi M-R, some rights reserved (CC BY), uploaded by Jordi M-R
- 68. (c) Richard Droker, some rights reserved (CC BY-NC-ND)
- 69. (c) Arthur Chapman, some rights reserved (CC BY-NC-SA)
- 70. (c) Bastiaan, some rights reserved (CC BY-NC-ND)
- 71. (c) Tony Frates, some rights reserved (CC BY-NC-SA)
- 72. (c) Norma Malinowski, some rights reserved (CC BY), uploaded by Norma Malinowski
- 73. (c) Mikko Heikkinen, some rights reserved (CC BY), uploaded by Mikko Heikkinen
- 74. (c) Torsten Eriksson, some rights reserved (CC BY-NC), uploaded by Torsten Eriksson