The Columbia River Gorge is a spectacular river canyon, 80 miles long and up to 4,000 feet deep, cutting the only sea level route through the Cascade Mountains. It is more than a natural wonder, it is also a critical transportation corridor.
State Route 14 in WA and Interstate 84 in OR side are the main highways along the Columbia River. Four bridges help you get from one side of the river to the other. They are located in Cascade Locks, Hood River, The Dalles and Biggs in OR and Stevenson, Bingen, Dallesport, and Maryhill in WA.