Water is also at the center of many of the scenic and recreational values that attract visitors.
Oregon has a network of 112,000 miles of rivers and streams and more than 6,000 lakes and reservoirs. The state's largest river, the Willamette, has more runoff per square mile than any other major river in the United States. Oregon is bounded on the north by the Columbia River and on the east by the Snake River. Other major stream systems in the state include the Deschutes, John Day, Klamath, Owyhee, Rogue and Umpqua rivers. However, belying its popular reputation, Oregon can be surprisingly dry.