LEADER 01684oem 2200445Ia 450 001 9910696540403321 005 20110907162132.0 035 $a(CKB)5470000002379449 035 $a(OCoLC)226968227 035 $a(EXLCZ)995470000002379449 100 $a20080502d2007 ua 101 0 $aeng 120 $ab|||||||||||| 121 $a||aa||||| 124 $bd 135 $aurcn||||||||| 181 $ccrd$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aGeologic map of Loudoun County, Virginia$b[electronic resource] /$fby Scott Southworth ... [et al. ; prepared in cooperation with the Loudoun County Office of Mapping and Geographic Information 205 $aVersion 1.1, rev. Mar. 2007. 210 1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2007. 215 $a1 electronic map $cHTML, digital, PDF file 225 1 $aGeologic investigations series ;$v2553 300 $aRelief shown by contours. 300 $aAccompanied by pamphlet (v, 34 p.). 300 $aIncludes 2 colored ancillary maps, 1 index map, 1 colored cross section, and 21 diagrams (some col.). 320 $aIncludes bibliographical references (pages 30-34 of pamphlet). 606 $aGeology$zVirginia$zLoudoun County$vMaps 608 $aMaps.$2lcgft 615 0$aGeology 700 $aSouthworth$b Scott$f1957-$01384296 712 02$aGeological Survey (U.S.) 712 02$aLoudoun County (Va.).$bOffice of Mapping and Geographic Information. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696540403321 996 $aGeologic map of Loudoun County, Virginia$93449646 997 $aUNINA