This program allows you to select and display information on the following map layer topics; basic maps, agriculture, biology, boundaries, climate, environment, gelogy, history, map reference, people, transportation, and water.You can locate and map more than 2,000,000 geographic names in the United States, and identify map features to learn more about them..
National Map Viewer
The National Map Viewer displays digital map layers available from the U.S. Geological Survey, including its 1:24,000 scale topographic maps (DRG's) with updated roads and features. There are many layers the user can click on interactively. You may display United States geospatial data (topography, boundaries, transportation, hydrography, elevation, land cover,cultural features), manipulate data layers, and extract and download data from national datasets.