1. Digital shaded-relief image of Alaska Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
2. Digital shaded-relief map of Venezuela Author/Creator: Garrity, Christopher P. Publication/Creation: [Reston, Va.] : U.S. Geological Survey, 2004 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading