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Region
- California >> United States 39
- Oregon >> United States 25
- Washington >> United States 19
- Willamette River >> Multnomah County >> Oregon >> United States 14
- Columbia River >> Douglas County >> Washington >> United States 13
- Snake River >> Franklin County >> Washington >> United States 8
- San Francisco Bay >> San Mateo County >> California >> United States 7
- San Diego River >> San Diego County >> California >> United States 6
- Coos Bay >> Coos County >> Oregon >> United States 5
- Lower Klamath National Wildlife Refuge >> Siskiyou County >> California >> United States 5
- Alaska >> United States 4
- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 4
- Clearwater River >> Nez Perce County >> Idaho >> United States 3
- Idaho >> United States 3
- Three Arch Rocks National Wildlife Refuge >> Tillamook County >> Oregon >> United States 3
- Umpqua River >> Douglas County >> Oregon >> United States 3
- Farallon National Wildlife Refuge >> San Francisco County >> California >> United States 2
- Hawaiian Islands National Wildlife Refuge >> Honolulu County >> Hawaii >> United States 2
- Illinois >> United States 2
- Maine >> United States 2