DIGITAL GEOLOGIC MAP OF LOUDOUN COUNTY, VIRGINIA
U.S. Geological Survey Open-File Report 99-150
By Scott Southworth, W.C. Burton, J.S. Schindler, and A.J. Froelich with contributions on the geology of the Piedmont province by A.A. Drake, Jr., and R.E. Weems and an aeromagnetic survey by D.L. Daniels, W.F. Hanna, and R.E. Bracken
CONTENTS
The Loudoun County Project contains the following files:
surficial_dd.e00 - Surficial geologic map Arc Info Format structure_dd.e00 - Structure geologic map Arc Info Format fault_dd.e00 - Faults geologic map Arc Info Format
bedrock_dd.e00 - Bedrock geologic map Arc Info Format loudoun.htm - Loudoun meta data in html format loud_meta.txt - Loudoun meta data in text format 90loudoun1_final.jpg - jpeg image
Download the Loudoun County Zip file
Graphics
mapimage.jpg - image of the map
mapplot.eps - encapsulated postscript plot file of printed map
ArcView
Bed_dd.shp - bedrock geology, Surf_dd.shp - surficial geolgy, Fault_dd.shp - faults and folds, Struc_dd.shp - planar features - projected in Latitude Longitude Decimal Degrees
ArcView.zip
Documentation
Readme.txt
Loudoun.htm - report to accompany map
Loudoun.txt - report to accompany map
Loud_meta.txt - FGDC compliant metadata
Fault_lookup.txt - Text file explanation of fault attributes


U.S. Geological Survey
National Center, MS 926A
12201 Sunrise Valley Drive
Reston, VA 20192

Maintained by: EESP Team Staff
Contact: Peter Chirico (pchirico@usgs.gov)