No, the grand Coulee dam is in washington and its tall like 550 feet and the Mossyrock dam is tall too , but the Oroville dam in Ca, is the tallest in the US, it is over 700 feet tall. and the HOOver dam in Nevada is second tallest.
The Grand Coulee Dam--the largest concrete dam in the world
Washington state
The Grand Coulee Dam is not located in Washington, D.C. It is located in the U.S. state of Washington. Olympia is the capital city of the U.S. state of Washington.
The Grand Coulee Dam - a huge dam on the Columbia River in north-central Washington State.
Washington state, the Grand Coullee dam
Washington
Washington state
Oroville Dam in California. Hoover Dam in Nevada/Arizona. Glen Canyon Dam in Arizona. Grand Coulee Dam in Washington. Fort Peck Dam in Montana.
The Grand Coulee Dam is located on the Columbia River in the U.S. state of Washington.
Seattle?
Nevada
Washington
Olympia is the capital city of the U.S. state of Washington.