1. Geologic map of Iowa Author/Creator: Iowa Geological Survey Publication/Creation: [Des Moines?] : [publisher not identified], 1969 Resource Type: Map Access & Availability: Loading
2. Geologic map of the Brevard fault zone near Atlanta, Georgia Author/Creator: Higgins, Michael W. Publication/Creation: Washington, D.C. : U.S. Geological Survey, 1968 Resource Type: Map Access & Availability: Loading