Photos:
- 1. (c) Tom Norton, some rights reserved (CC BY-NC), uploaded by Tom Norton
- 2. (c) jon hayes, some rights reserved (CC BY-NC)
- 3. (c) Charlie Hohn, some rights reserved (CC BY), uploaded by Charlie Hohn
- 4. (c) Josh*m, some rights reserved (CC BY-NC-SA)
- 5. (c) Susan Elliott, some rights reserved (CC BY-NC), uploaded by Susan Elliott
- 6. (c) Mathew Zappa, some rights reserved (CC BY), uploaded by Mathew Zappa
- 7. (c) manual crank, some rights reserved (CC BY-NC-SA)
- 8. (c) Superior National Forest, some rights reserved (CC BY)
- 9. (c) lvconrad1977, some rights reserved (CC BY-NC), uploaded by lvconrad1977
- 10. (c) Bruce Bennett, some rights reserved (CC BY-NC), uploaded by Bruce Bennett
- 11. (c) Christopher Tracey, some rights reserved (CC BY-NC-SA), uploaded by Christopher Tracey
- 12. (c) zen Sutherland, some rights reserved (CC BY-NC-SA)
- 13. (c) Julia V. Shner, some rights reserved (CC BY-NC), uploaded by Julia V. Shner
- 14. (c) arghman, some rights reserved (CC BY-NC-ND)
- 15. (c) cotinis, some rights reserved (CC BY-NC-SA)
- 16. (c) James Gaither, some rights reserved (CC BY-NC-ND)
- 17. (c) botany08, some rights reserved (CC BY), uploaded by botany08
- 18. (c) Sam Thomas, some rights reserved (CC BY-NC-SA)
- 19. (c) Varina Crisfield, some rights reserved (CC BY-NC-SA)
- 20. (c) mako, some rights reserved (CC BY)
- 21. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 22. (c) Richard Droker, some rights reserved (CC BY-NC-ND)
- 23. (c) Chris Rimmer, some rights reserved (CC BY-NC), uploaded by Chris Rimmer
- 24. (c) Timothy Valentine, some rights reserved (CC BY-NC-SA)
- 25. (c) Janet Nelson, some rights reserved (CC BY-NC-ND), uploaded by Janet Nelson
- 26. (c) myiarchus22, some rights reserved (CC BY-NC)
- 27. (c) Jeff Chapman, some rights reserved (CC BY-NC), uploaded by Jeff Chapman
- 28. (c) Calli, some rights reserved (CC BY-NC), uploaded by Calli
- 29. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 30. (c) thesnaguy, some rights reserved (CC BY-NC-SA), uploaded by thesnaguy
- 31. (c) judith holm, some rights reserved (CC BY-NC-ND), uploaded by judith holm
- 32. (c) Mallory S., some rights reserved (CC BY-NC), uploaded by Mallory S.
- 33. (c) Petritap, some rights reserved (CC BY-SA)
- 34. (c) Charles Wohlers, some rights reserved (CC BY-NC-ND)
- 35. (c) Cindy Kilpatrick, some rights reserved (CC BY)
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