Topographic Maps

Credit: U.S. Geological Survey

The USGS Headquarters in Reston, VA

Did You Know?

The United States Geological Survey (USGS) is the agency of the United States Government that is responsible for scientific research related to the land and land use in the United States. Its headquarters is located in Reston, Virginia with other major centers in Colorado and California. The USGS has over 8,500 employees who study land areas, natural resources, and hazards. This agency produces the largest series of topographical maps that contains almost 57,000 individual maps.