1. Physical, hydrological, and biological characteristics of the Loxahatchee River estuary, Florida Author/Creator: McPherson, Benjamin F. Publication/Creation: [Tallahassee, Fla.] : Dept. of the Interior, U.S. Geological Survey, 1982 Format: Map Access & Availability: Loading
2. Potentiometric-surface map of water in the Fox Hills-Lower Hell Creek aquifer in the northern Great Plains area of Montana Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey , 1982 Format: Map Access & Availability: Loading