BOULDER CITY

city, Clark county, southeastern Nevada, U.S., overlooking Lake Mead, which is impounded by the Hoover Dam. Named for the Boulder Canyon Project, it was established in 1931 by the federal government as a residential community for personnel employed at Hoover (Boulder) Dam and other local construction projects, including Lake Mohave and Davis Dam. It was incorporated as a city in 1960, after the former U.S. Bureau of Reclamation deeded the area to self-government. It is headquarters for the U.S. Water and Power Resources Service and for the Lake Mead National Recreational Area. Pop. (1990) 12,567.