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Region
- Willamette River >> Multnomah County >> Oregon >> United States 25
- Portland >> Washington County >> Oregon >> United States 22
- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 14
- Columbia River >> Clatsop County >> Oregon >> United States 12
- Lower Klamath National Wildlife Refuge >> Siskiyou County >> California >> United States 11
- Chicago >> Cook County >> Illinois >> United States 10
- New York >> New York >> United States 10
- Boston >> Suffolk County >> Massachusetts >> United States 6
- University of California, Berkeley >> Alameda County >> California >> United States 6
- Corvallis >> Benton County >> Oregon >> United States 5
- Pittsburgh >> Allegheny County >> Pennsylvania >> United States 5
- Bonneville Dam >> Multnomah County >> Oregon >> United States 4
- Coatesville >> City of Coatesville >> Chester County >> Pennsylvania >> United States 4
- Detroit >> Wayne County >> Michigan >> United States 4
- Tule Lake National Wildlife Refuge >> Siskiyou County >> California >> United States 4
- La Grange >> Lyons Township >> Cook County >> Illinois >> United States 3
- Reading >> City of Reading >> Berks County >> Pennsylvania >> United States 3
- Alaska >> United States 2
- Baltimore >> City of Baltimore >> Maryland >> United States 2
- Buffalo 2
