The longest river in the Pacific Northwest; forms the border between Oregon and Washington.

The largest tributary of the Columbia, which flows through Hells Canyon and joins the main stem at Pasco.

A major tributary of the Columbia that flows north through Portland and joins the river in the Willamette Valley.

The largest producer of hydroelectric power in the U.S., which forms Franklin D. Roosevelt Lake.

A major dam on the Columbia known for its fish ladders and oversight by a namesake Power Administration.

A series of falls and a namesake canal flooded in 1957 by the construction of The Dalles Dam.

Engineered structures on dams like Bonneville that allow salmon to bypass turbines during migration.

The metropolitan area (Pasco, Richland, Kennewick) located at the confluence of the Columbia and Snake.

The location near the town of Ilwaco where the Columbia River's mouth hits a dangerous sandbar.

A former nuclear production complex on the Columbia River, known as the most contaminated nuclear site in the U.S.

A tributary of the Columbia that rises in the Beaverfoot Range and flows through the Idaho panhandle.

The dam whose construction resulted in the destruction of the ancient Celilo Falls fishing site.

A large water gap through basalt ridges on the Columbia River near the Washington-Oregon border.

The geological region of Washington formed by the ancient Missoula Floods in the Columbia Basin.

A tributary that joins the Columbia near the Tri-Cities; its valley is a major agricultural region.

The Oregon town located near the mouth of the Columbia River, famous for its dangerous "bar" of shoals.

Bonneville Power Administration

The federal agency that markets and transmits power from the dams in the Columbia River Basin.

A massive waterfall located on a small tributary within the Columbia River Gorge.

A cantilever bridge over the Columbia named for a prehistoric landslide that once dammed the river.

The large geographic region across Washington and Oregon formed by basaltic lava flows and the river's drainage.

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Colombia River

Colombia River Notes

Question	Answer
Columbia River	The longest river in the Pacific Northwest; forms the border between Oregon and Washington.
Snake River	The largest tributary of the Columbia, which flows through Hells Canyon and joins the main stem at Pasco.
Willamette River	A major tributary of the Columbia that flows north through Portland and joins the river in the Willamette Valley.
Grand Coulee Dam	The largest producer of hydroelectric power in the U.S., which forms Franklin D. Roosevelt Lake.
Bonneville Dam	A major dam on the Columbia known for its fish ladders and oversight by a namesake Power Administration.
Celilo Falls	A series of falls and a namesake canal flooded in 1957 by the construction of The Dalles Dam.
Fish Ladders	Engineered structures on dams like Bonneville that allow salmon to bypass turbines during migration.
Tri-Cities Area	The metropolitan area (Pasco, Richland, Kennewick) located at the confluence of the Columbia and Snake.
Cape Disappointment	The location near the town of Ilwaco where the Columbia River's mouth hits a dangerous sandbar.
Hanford Site	A former nuclear production complex on the Columbia River, known as the most contaminated nuclear site in the U.S.
Kootenay River	A tributary of the Columbia that rises in the Beaverfoot Range and flows through the Idaho panhandle.
The Dalles Dam	The dam whose construction resulted in the destruction of the ancient Celilo Falls fishing site.
Wallula Gap	A large water gap through basalt ridges on the Columbia River near the Washington-Oregon border.
Channeled Scablands	The geological region of Washington formed by the ancient Missoula Floods in the Columbia Basin.
Yakima River	A tributary that joins the Columbia near the Tri-Cities; its valley is a major agricultural region.
Astoria	The Oregon town located near the mouth of the Columbia River, famous for its dangerous "bar" of shoals.
Bonneville Power Administration	The federal agency that markets and transmits power from the dams in the Columbia River Basin.
Multnomah Falls	A massive waterfall located on a small tributary within the Columbia River Gorge.
Bridge of the Gods	A cantilever bridge over the Columbia named for a prehistoric landslide that once dammed the river.
Columbia Plateau	The large geographic region across Washington and Oregon formed by basaltic lava flows and the river's drainage.

Created by: kromeo

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