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

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