21. Geologic map of the Scotts Mills, Silverton, and Stayton Northeast 7.5 minute quadrangles, northeast Oregon : a digital database Author/Creator: Tolan, Terry L. Publication/Creation: [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 1999 Resource Type: Map Access & Availability: Loading
22. Preliminary geologic map of the Sanchez Reservoir quadrangle and eastern part of the Garcia quadrangle, Costilla County, Colorado Author/Creator: Thompson, Ren A. Publication/Creation: Denver, Colo. : U.S. Geological Survey, 2007 Resource Type: Map Edition: Version 1.0, posted June, 2007. Access & Availability: Loading
23. Seismicity of the Earth, 1900-2007, Caribbean plate and vicinity Author/Creator: Tarr, Arthur C. Publication/Creation: [Reston, VA] : U.S. Dept of the Interior, U.S. Geological Survey, 2010 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading
24. Earthquakes in Virginia and vicinity, 1774 - 2004 Author/Creator: Tarr, Arthur C. Publication/Creation: [Reston, Va.?] : U.S. Geological Survey, [2006] Resource Type: Map Edition: Version 1.0, posted April 2006. Access & Availability: Loading
25. Surficial geologic map of the Clinton-Concord-Grafton-Medfield 12-quadrangle area in east central Massachusetts Author/Creator: Stone, Janet Radway Publication/Creation: Reston, Va. : U.S. Geological Survey, 2007 Resource Type: Map Access & Availability: Loading
26. Surface geologic map of the Mount Grace-Ashburnham-Monson-Webster 24-quadrangle area in central Massachusetts Author/Creator: Stone, Janet Radway. compiler Publication/Creation: [Reston, VA] : U.S. Department of the Interior, U.S. Geological Survey, 2013 Resource Type: Map Access & Availability: Loading
27. Surficial geologic map of the Worcester North-Oxford-Wrentham-Attleboro nine-quadrangle area in south-central Massachusetts Author/Creator: Stone, Byron D. Publication/Creation: Denver, CO : Information Services [distributor]. Resource Type: Map Access & Availability: Loading
28. Surficial geologic map of the Salem Depot-Newburyport East-Wilmington-Rockport 16-quadrangle area in northeast Massachusetts Author/Creator: Stone, Byron D. Publication/Creation: Denver, CO : Information Services [distributor]. Resource Type: Map Access & Availability: Loading
29. Surficial geologic map of the Pocasset-Provincetown-Cuttyhunk-Nantucket 24-quadrangle area of Cape Cod and islands, southeast Massachusetts Author/Creator: Stone, Byron D. Publication/Creation: [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2009 Resource Type: Map Access & Availability: Loading
30. Surficial geologic map of the Ashby-Lowell-Sterling-Billerica 11-quadrangle area in northeast-central Massachusetts Author/Creator: Stone, Byron D. Publication/Creation: Denver, CO : Information Services [distributor]. Resource Type: Map Access & Availability: Loading