Loudoun Geologic Surficial
type: Dataset
description: More Metadata "Surficial" is one of four layers which collectively describe the subsurface geologic formation, structural geology and surficial deposits. "Surficial" is the mapping overlying surficial deposits, or the surface deposits covering bedrock layers. The Geology of Loudoun County, Virginia, was mapped in 1988 through 1991 under a cooperative agreement between the U.S. Geological Survey (USGS) and the Loudoun County Department of Environmental Resources. This geologic map was compiled in 1993 from a series of detailed published and unpublished field investigations at scales of 1:12,000 and 1:24,000. Some of these same data were compiled as a digital geologic map at 1:100,000 scale (Burton and others, 1992a) and were the basis for a cost-benefit analysis of the societal value of geologic maps (Bernknopf and others, 1993). The data was later revised and published by USGS in the Open File Report, MAP OF-99-150, GEOLOGIC MAP OF LOUDOUN COUNTY, VIRGINIA 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.
issued: 2017-09-11T14:33:11+00:00
modified: 2020-11-24T15:36:31+00:00
spatial: Location
contact point: Organization
  fn: LoudounCounty
keyword: amerigeo
keyword: amerigeoss
keyword: ckan
keyword: environment
keyword: environmental
keyword: geo
keyword: geology
keyword: geoss
keyword: loudoun-county
keyword: national
keyword: north-america
keyword: open-data
keyword: surficial
keyword: united-states
theme: {geospatial}

KML
type: Distribution
format: KML
issued: 2022-01-24T23:15:08.006216
modified: 2025-11-19T18:35:13.983489
access URL: https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-geologic-surficial.kml
media type: application/vnd.google-earth.kml+xml

CSV
type: Distribution
format: CSV
issued: 2022-01-24T23:15:08.006213
modified: 2025-11-19T18:35:13.982797
access URL: https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-geologic-surficial.csv
media type: text/csv

Shapefile
type: Distribution
format: ZIP
issued: 2022-01-24T23:15:08.006218
modified: 2025-11-19T18:35:13.984132
access URL: https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-geologic-surficial.zip
media type: application/zip

GeoJSON
type: Distribution
format: GeoJSON
issued: 2022-01-24T23:15:08.006210
modified: 2025-11-19T18:35:13.982134
access URL: https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-geologic-surficial.geojson
media type: application/vnd.geo+json

ArcGIS GeoService
type: Distribution
format: ArcGIS GeoServices REST API
issued: 2022-01-24T23:15:08.006207
modified: 2025-11-19T18:35:13.981411
access URL: https://logis.loudoun.gov/gis/rest/services/COL/Geology/MapServer/5
media type: application/json

ArcGIS Hub Dataset
type: Distribution
format: HTML
issued: 2022-01-24T23:15:08.006200
modified: 2025-11-19T18:35:13.980625
access URL: https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-geologic-surficial
media type: text/html

US Migrating
type: Agent