Edited by Minnesota Scientific and Natural Areas, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Cephas, some rights reserved (CC BY-SA)
- 2. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 3. (c) Owen Clarkin, some rights reserved (CC BY-NC), uploaded by Owen Clarkin
- 4. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 5. (c) Owen Strickland, some rights reserved (CC BY-NC), uploaded by Owen Strickland
- 6. (c) brewbooks, some rights reserved (CC BY-SA)
- 7. (c) lvconrad1977, some rights reserved (CC BY-NC), uploaded by lvconrad1977
- 8. (c) Shihmei Barger 舒詩玫, some rights reserved (CC BY-NC-ND)
- 9. (c) arghman, some rights reserved (CC BY-NC-ND)
- 10. (c) mako, some rights reserved (CC BY)
- 11. (c) Superior National Forest, some rights reserved (CC BY)
- 12. (c) clarisacurtis, some rights reserved (CC BY-NC)
- 13. (c) Shuk Han (Nancy) Mak, some rights reserved (CC BY-NC), uploaded by Shuk Han (Nancy) Mak
- 14. (c) Arthur Chapman, some rights reserved (CC BY)
- 15. (c) libby_orcutt, some rights reserved (CC BY-NC), uploaded by libby_orcutt
- 16. (c) timmenzies on Flickr, some rights reserved (CC BY-SA)
- 17. (c) copepodo, some rights reserved (CC BY-NC-ND)
- 18. (c) Joseph D Kurtz, some rights reserved (CC BY-NC), uploaded by Joseph D Kurtz
- 19. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
- 20. (c) Sirpale79, some rights reserved (CC BY-NC-SA)
- 21. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
- 22. (c) Anita363, some rights reserved (CC BY-NC)
- 23. (c) jimmalefyt, some rights reserved (CC BY-NC)
- 24. (c) Michael Ellis, some rights reserved (CC BY), uploaded by Michael Ellis