Warm Springs Reservoir
Warm Springs Reservoir is a reservoir on the boundary between Harney and Malheur counties in the U.S. state of Oregon. It is located southwest of Juntura at an elevation of. The lake's primary inflow and outflow are both the Malheur River.
The tall and long thin-arch concrete Warm Springs Dam was built from 1918 to 1919 by the Warm Springs Irrigation District, and was later modified in 1930 and 1939 with the help of the United States Bureau of Reclamation.
It was constructed from of material on top of a series of olivine basalt lava flows. The resultant reservoir has a maximum area of, a maximum volume of, and a maximum depth of. It has a shore length of about and a residence time of about 2.2 years.
Warm Springs Reservoir's watershed covers approximately of eastern Oregon. It receives an average precipitation of. As of the 2000 Census, there were 157 people living within the watershed's boundaries.
The predominant wildlife in the region is mule deer and various waterfowl. Bass, bluegill, and rainbow trout are the main fish found in the reservoir.
The reservoir is classified as eutrophic, with a transparency of about.
