Roosevelt Lake is the upper-most reservoir of a four-reservoir chain in the Salt River watershed. Roosevelt Lake is the largest and is formed by Theodore Roosevelt Dam constructed in 1911 by the Bureau of Reclamation. Roosevelt Lake is located on the Tonto National Forest (TNF) in central Arizona almost entirely within Gila County. At full capacity, the lake is approximately 22 miles long with nearly 128 miles of shoreline with a water surface elevation of 2151 feet. The reservoir can store approximately 1,653,043 acre-feet (AF) of water at maximum conservation pool. The lake level fluctuates over time in response to water use, evaporation, and annual precipitation and runoff. As of June 2017, the lake is 69% full at an elevation of 2124ft with approximately 17,129 surface acres.