Across
- 3. gates used in canals to hold a boat in place while water levels are adjusted
- 5. rivers, lakes, and streams allow this to thrive
- 7. a metal that negatively impacted the insects of Yellowstone
- 8. this was a concern in Cuyahoga Valley as cities continued to grow ("urban sprawl")
- 11. bears can fish for this at Brooks River for longer than at other places in Katmai National Park
- 13. the color of Soda Butte Creek
- 15. the shape of the NPS logo
- 19. the grassroots activist cause that resulted in the creation of Cuyahoga Valley National Park
- 20. the source of the toxic metals in Soda Butte Creek
- 21. the name of one of the rivers in Katmai where bears gather
Down
- 1. the season when bears leave the river for final foraging opportunities
- 2. eating dead or dying animals
- 4. the species of fish that Yellowstone River was known for
- 6. __________ River is the largest undammed river in the contiguous United States
- 9. refers to rivers that are free-flowing instead of frozen
- 10. the lake on the NPS logo represents this
- 12. described the water in Yellowstone River
- 14. over _______ hundred National Parks exist in the United States
- 16. a hydrogeologist and leader in the quest to clean Yellowstone River
- 17. eat salmon scraps left by bears
- 18. the most important part of Cuyahoga Valley National Park
- 21. _______ Marsh is one of the largest wetlands in the Cuyahoga Valley
