<Tr> <Th> GNIS feature ID </Th> <Td> 1296156 </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.oakridgetn.gov </Td> </Tr> <P> Oak Ridge is a city in Anderson and Roane counties in the eastern part of the U.S. state of Tennessee, about 25 miles (40 km) west of Knoxville . Oak Ridge's population was 29,330 at the 2010 census . It is part of the Knoxville Metropolitan Area . Oak Ridge's nicknames include the Atomic City, the Secret City, the Ridge, and the City Behind the Fence . </P> <P> Oak Ridge was established in 1942 as a production site for the Manhattan Project--the massive American, British, and Canadian operation that developed the atomic bomb . As it is still the site of Oak Ridge National Laboratory, scientific development still plays a crucial role in the city's economy and culture in general . </P>

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