01684oem 2200445Ia 450 991069654040332120110907162132.0(CKB)5470000002379449(OCoLC)226968227(EXLCZ)99547000000237944920080502d2007 ua engb||||||||||||||aa|||||durcn|||||||||crdrdacontentcrdamediacrrdacarrierGeologic map of Loudoun County, Virginia[electronic resource] /by Scott Southworth ... [et al. ; prepared in cooperation with the Loudoun County Office of Mapping and Geographic InformationVersion 1.1, rev. Mar. 2007.[Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,2007.1 electronic map HTML, digital, PDF fileGeologic investigations series ;2553Relief shown by contours.Accompanied by pamphlet (v, 34 p.).Includes 2 colored ancillary maps, 1 index map, 1 colored cross section, and 21 diagrams (some col.).Includes bibliographical references (pages 30-34 of pamphlet).GeologyVirginiaLoudoun CountyMapsMaps.lcgftGeologySouthworth Scott1957-1384296Geological Survey (U.S.)Loudoun County (Va.).Office of Mapping and Geographic Information.GPOGPOBOOK9910696540403321Geologic map of Loudoun County, Virginia3449646UNINA