1. Sediment distribution and hydrologic conditions of the Potomac aquifer in Virginia and parts of Maryland and North Carolina Author/Creator: McFarland, E. Randolph, author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013 Format: Book Access & Availability: Loading
2. Shallow-landslide hazard map of Seattle, Washington Author/Creator: Harp, Edwin L. Publication/Creation: [Reston, Va.?] : U.S. Geological Survey, 2006 Format: Map Edition: Version 1.0. Access & Availability: Loading