Bend sits on the boundary of the Eastern Cascades Slopes and Foothills, a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. states of Oregon, Washington, and California, and the Deschutes River Valley, a Level IV ecoregion within the Blue Mountains Level III ecoregion. The Deschutes River runs though Bend where it is dammed forming Mirror Pond. Bend's elevation is 3,623 feet (1,104 m)