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["American Geological Institute, 2012, Glossary of Geology",null,"https://www.americangeosciences.org/","DS1"]
["Brezinski, D.B., Adams, R.K., and Connallon C.B., 2021, Geologic Map of Frederick and Washington Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS2"]
["Brezinski, D.K. and Conkwright, R.D. 2013. Geologic Map of Garrett, Allegany, and Western Washington Counties in Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS3"]
["Southworth, S., Brezinski, D.K., Drake Jr., A.A., Burton, W.C., Orndorff, R.C., Froelich, A.J., Reddy, J.E., Denenny, D., and Daniels, D.L., 2007. Geologic Map of the Frederick 30' x 60' Quadrangle, Maryland, Virginia, and West Virginia. United States Ge",null,"https://pubs.er.usgs.gov/publication/sim2889","DS4"]
["Brezinski, D.K., and Glaser, J.D., 2014, Geologic and Karst Features Map of the Maryland Portions of the Clear Spring and Hedgesville Quadrangles, Washington County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS5"]
["Brezinski, D.K., 2013, Geologic and Karst Features Map of the Mason-Dixon Quadrangle, Washington County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS6"]
["Brezinski, D.K., 2014, Geologic and Karst Features Map of the Williamsport Quadrangle, Washington County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS7"]
["Brezinski, D.K., 2009, Geologic Map of Keedysville, and parts of Shepherdstown, Harpers Ferry and Charles Town Quadrangles, Washington and Frederick Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS8"]
["Brezinski, D.K., and Bell, S.C., 2009, Geologic Map of the Funkstown Quadrangle, Washington County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS9"]
["Brezinski, D.K., 2013, Geologic and Karst Features Map of the Hagerstown Quadrangle, Washington County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS10"]
["Brezinski, D.K., and Fauth, J.L., 2009, Geologic Map of the Myersville Quadrangle and Maryland portion of the Smithsburg Quadrangle, Washington and Frederick Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS11"]
["Brezinski, D.K., and Fauth, J.L., 2005, Geologic Map of the Middletown Quadrangle, Frederick and Washington Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS12"]
["Brezinski, D.K., 2004, Geology of Part of the Point of Rocks Quadrangle, Frederick County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS13"]
["Brezinski, D.K., 2021, Geology of Part of the Blue Ridge Summit Quadrangle, Frederick County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS14"]
["Brezinski, D.K., 2004, Geologic Map of the Catoctin Furnace Quadrangle, Frederick County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS15"]
["Brezinski, D.K., 2004, Geologic Map of the Frederick Quadrangle, Frederick County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS16"]
["Brezinski, D.K., and Southworth, S., 2001, Geologic Map of the Buckeystown Quadrangle, Frederick and Montgomery Counties, Maryland. Maryland Geological Survey. Revised 2004.",null,"http://www.mgs.md.gov/publications/maps.html","DS17"]
["Brezinski, D.K., 2021, Geology of Part of the Emmitsburg and Taneytown Quadrangles, Washington and Frederick Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS18"]
["Brezinski, D.K., and Edwards Jr., J., 2004, Geologic Map of the Woodsboro Quadrangle, Frederick and Carroll Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS19"]
["Reger, J.P. and Edwards Jr., J., 2006, Geologic Map of the Union Bridge Quadrangle, Frederick and Carroll Counties, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS20"]
["Reger, J.P., Brezinski, D.K., Southworth, S., and Quinn, H.A., 2004, Geologic Map of the New Windsor Quadrangle, Carroll County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS21"]
["Brezinski, D.K., Southworth, S., and Edwards Jr., J., 2004, Geologic Map of the Walkersville Quadrangle, Frederick County, Maryland. Maryland Geological Survey.",null,"http://www.mgs.md.gov/publications/maps.html","DS22"]
["Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number",null,"https://ngmdb.usgs.gov/fgdc_gds/geolsymstd.php","FGDC-STD-013-2006"]