1. Geological map of the Nepenthes Planum Region, Mars Author/Creator: Geological Survey (U.S.), cartographer, issuing body Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2018 Resource Type: Map Access & Availability: Loading
2. Geologic map of the Beacon Rock quadrangle, Skamania County, Washington Author/Creator: Geological Survey (U.S.), cartographer, issuing body Publication/Creation: Reston, VA : U.S. Geological Survey, 2017 Resource Type: Map Access & Availability: Loading