1. Geologic map of the Themis Regio quadrangle (V-53), Venus Author/Creator: Stofan, Ellen Renee, 1961- Publication/Creation: [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2012 Resource Type: Map Access & Availability: Loading
2. Geologic map of the Hecate Chasma quadrangle (V-28), Venus Author/Creator: Stofan, Ellen Renee, 1961- Publication/Creation: [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2012 Resource Type: Map Access & Availability: Loading