Four dams on Washington state’s Snake River act as hurdles to migrating salmon

Washington

Little

Goose

Lower Monumental

Seattle

Lower

Granite

Ice Harbor

Columbia

River

Snake

River

Portland

Oregon

100 km

100 miles

Washington

Spokane

Seattle

Lower Monumental

Little Goose

Tacoma

Ice Harbor

Lower Granite

Snake River

Kennewick

Portland

Columbia River

Oregon

Idaho

100 km

100 miles