1. Altitude and generalized configuration of the top of the Floridan aquifer, St. Johns County, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Tallahassee, Florida : Department of the Interior, United States Geological Survey, 1984 Format: Map Access & Availability: Loading
2. Average annual precipitation and runoff for Arkansas, 1951-1980 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading