1. Bathymetric map : Alaska Peninsula, Stepovak Bay Author/Creator: United States. National Ocean Service Publication/Creation: Washington, D.C. : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, 1984 Format: Map Access & Availability: Loading
2. Bouguer gravity anomaly map of the Twentynine Palms Marine Corps Base and vicinity, California Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Denver, Colo.] : Department of the Interior, United States Geological Survey, 1984 Format: Map Access & Availability: Loading