1. Saltwater intrusion in the shallow aquifer in Martin and Palm Beach Counties, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey, 1977 Resource Type: Map Access & Availability: Loading
2. The Sparta aquifer system in Mississippi Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Jackson, Mississippi : Department of the Interior, United States Geological Survey, 1975 Resource Type: Map Access & Availability: Loading