Data notes for: Geologic map of the Middletown quadrangle, Frederick, Shenandoah, and Warren Counties, Virginia: Geological Survey Geologic Quadrangle Map GQ-1803 by: Randall C. Orndorff, Jack B. Epstein and Robert C. McDowell, 1999 All data is projected to UTM, Zone 17N, Datum NAD83, units meters Files: GIS.zip: Vector GIS data as ESRI ArcMap 9.2 personal geodatabase files 9 with map file) or as shapefiles base_map.zip: compressed georegistered bitmap image of the Middletown quadrangle 1:24,000 scale topographic map gq1803.pdf: graphic file of entire geologic map, ancilliary figures, descriptions, and discussion. Printer-ready (34"x47" at full scale) Metadata.zip: compressed metadata file to accompany vector bedrock geologic data Readme.txt (this readme file) This publication may be found on the internet at: http://pubs.usgs.gov/gq/gq-1803/