J. Percy Priest Lake is a reservoir

Reservoir

A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 in north central Tennessee

Tennessee

Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...

. It is formed by J. Percy Priest Dam

J. Percy Priest Dam

J. Percy Priest Dam is a dam in north central Tennessee at mile 6.8 of the Stones River, a tributary of the Cumberland. It is located about ten miles east of downtown Nashville. The reservoir behind the dam is Percy Priest Lake....

, located between miles six and seven of the Stones River

Stones River

The Stones River is a major stream of the eastern portion of Tennessee's Nashville Basin region.-Geography and hydrography:The Stones River is composed of three major forks: the West, Middle, and East forks. The West Fork, long, rises in southernmost Rutherford County near the Bedford County...

. The dam

Dam

A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...

 (easily visible from Interstate 40

Interstate 40

Interstate 40 is the third-longest major east–west Interstate Highway in the United States, after I-90 and I-80. Its western end is at Interstate 15 in Barstow, California; its eastern end is at a concurrency of U.S. Route 117 and North Carolina Highway 132 in Wilmington, North Carolina...

) is located about 10 miles (16 km) east of downtown Nashville

Nashville, Tennessee

Nashville is the capital of the U.S. state of Tennessee and the county seat of Davidson County. It is located on the Cumberland River in Davidson County, in the north-central part of the state. The city is a center for the health care, publishing, banking and transportation industries, and is home...

 and impounds a lake 42 miles (68 km) long. The lake and dam are named for Congressman

United States Congress

The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

 Percy Priest

Percy Priest

James Percy Priest was an American teacher, journalist and politician who represented Tennessee in the United States House of Representatives from 1941 until his death.- Background :Priest was born in Maury County, Tennessee...

.

The lake covers portions of Davidson

Davidson County, Tennessee

Davidson County is a county located in the U.S. state of Tennessee. As of 2010, the population was 626,681. Its county seat is Nashville.In 1963, the City of Nashville and the Davidson County government merged, so the county government is now known as the "Metropolitan Government of Nashville and...

, Rutherford

Rutherford County, Tennessee

Rutherford County is a county located in the U.S. state of Tennessee. As of the 2010 census, it is the state's fifth-largest county by population with 262,604 people, an increase of 44.3 percent over the 2000 population of 182,023. Its county seat is Murfreesboro, which is also the geographic...

, and Wilson Counties and consists of 14,200 acres (57 km²) of water at summer pool elevation 490 feet (149 m) above mean sea level.