Coulee Corridor

One of the greatest ice age floods on earth has left in its wake a fusion of geological, historical and cultural awe, which we now call the Coulee Corridor. The 150-mile byway connecting Othello and the Grand Coulee is home to thousands of wildlife species, museums, five state parks and a national recreational area.

The Coulee Corridor byway crosses the lands of the Federated Tribes of Colville following State Highways 17 & 155. Rich in lively human history and unique geological landscape; this is where the modern world remembers the overwhelming simplicity of nature.

Byway Facts & Helpful Information

Route Information:

Route: SR 17, SR 155
Length: 100 miles
Drive Time: 2h 15min
Road Considerations:

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