Edited by Minnesota Scientific and Natural Areas, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) anonymous, some rights reserved (CC BY-SA)
- 2. (c) Josh*m, some rights reserved (CC BY-NC-SA)
- 3. (c) zen Sutherland, some rights reserved (CC BY-NC-SA)
- 4. (c) manual crank, some rights reserved (CC BY-NC-SA)
- 5. (c) lvconrad1977, some rights reserved (CC BY-NC), uploaded by lvconrad1977
- 6. (c) Superior National Forest, some rights reserved (CC BY)
- 7. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 8. (c) Timothy Valentine, some rights reserved (CC BY-NC-SA)
- 9. (c) edgeplot, some rights reserved (CC BY-NC-SA)
- 10. (c) Alex Abair, some rights reserved (CC BY-NC), uploaded by Alex Abair
- 11. (c) Calli, some rights reserved (CC BY-NC), uploaded by Calli
- 12. (c) Patrick Alexander, some rights reserved (CC BY-NC-ND)
- 13. (c) judith holm, some rights reserved (CC BY-NC-ND), uploaded by judith holm
- 14. (c) Mallory S., some rights reserved (CC BY-NC), uploaded by Mallory S.
- 15. (c) pietro c, some rights reserved (CC BY-NC)