Edited by refugerover, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Jim Morefield, some rights reserved (CC BY)
- 2. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 3. (c) J.R.M., some rights reserved (CC BY-NC-SA)
- 4. (c) Paul Tavares, some rights reserved (CC BY-NC), uploaded by Paul Tavares
- 5. (c) aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar
- 6. (c) Gravitywave, some rights reserved (CC BY-NC-SA)
- 7. (c) Superior National Forest, some rights reserved (CC BY)
- 8. (c) Peter Gorman, some rights reserved (CC BY-NC-SA)
- 9. (c) Christopher Porter, some rights reserved (CC BY-NC-SA)
- 10. (c) cassi saari, some rights reserved (CC BY-NC), uploaded by cassi saari
- 11. (c) Eric Keith, some rights reserved (CC BY-NC), uploaded by Eric Keith
- 12. (c) Jon Sullivan, some rights reserved (CC BY)
- 13. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
- 14. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 15. (c) John Tann, some rights reserved (CC BY)
- 16. (c) Andreas Rockstein, some rights reserved (CC BY-NC), uploaded by Andreas Rockstein
- 17. (c) Nikolai Vladimirov, some rights reserved (CC BY-NC), uploaded by Nikolai Vladimirov
- 18. (c) Robert D Stevenson, some rights reserved (CC BY-NC), uploaded by Robert D Stevenson
- 19. (c) Mateo Hernandez Schmidt, some rights reserved (CC BY-NC-SA), uploaded by Mateo Hernandez Schmidt
- 20. (c) David Greenberger, some rights reserved (CC BY-NC-ND), uploaded by David Greenberger