GIS
Our objective is to provide a number of spatial data sources covering the Williamsburg Quadrangle. These sources range in scales, projections and types; Vector and Raster images. The vector data coordinate units are stored as Decimal Degrees and have a Datum of NAD 1927 unless otherwise noted. most of the raster images are stored as UTM zone 18 coordinates and the Datum is noted.
Most of the Raster resources are USGS downloads. Some of theVector resources are USGS downloads or have been produced by Faculty, Staff or Students at the College of
William and Mary.
RASTER DATA:
DRG (USGS Topographic Map): Scale:1:24,000 Quadrangle: Williamsburg
Coordinates: UTM Zone 18 Datum: NAD1927 DPI: 250
O37076c6.zipDRG (USGS Topographic Map): Scale:1:24,000 Quadrangle: Williamsburg
Coordinates: UTM Zone 18 Datum: NAD1927 Clipped (has no collar data around the map itself) DPI: 250
O37076c6_clip.zipDRG (USGS Topographic Map): Scale:1:100,000 Quadrangle: Williamsburg
Coordinates: UTM Zone 18 Datum: NAD1927 DPI: 250
100_37076A1 .zipDRG (USGS Topographic Map): Scale:1:250,000 Quadrangle: Williamsburg
Coordinates: UTM Zone 18 Datum: NAD1927 DPI: 250
250_37076A1.zipDOQQ (USGS Digital Ortho-Quater Quadrangle): Scale:1:24,000
Quadrangle: Williamsburg Coordinates: UTM Zone 18 Datum: NAD1983
Image: Photos taken 1994 in color Quadrant: NW
37076c65.zipDOQQ (USGS Digital Ortho-Quater Quadrangle): Scale:1:24,000
Quadrangle: Williamsburg Coordinates: UTM Zone 18 Datum: NAD1983
Image: Photos taken 1994 in color Quadrant: NE
37076c66.zipDOQQ (USGS Digital Ortho-Quater Quadrangle): Scale:1:24,000
Quadrangle: Williamsburg Coordinates: UTM Zone 18 Datum: NAD1983
Image: Photos taken 1994 in color Quadrant: SE
37076c67.zipDOQQ (USGS Digital Ortho-Quater Quadrangle): Scale:1:24,000
Quadrangle: Williamsburg Coordinates: UTM Zone 18 Datum: NAD1983
Image: Photos taken 1994 in color Quadrant: SW
37076c68.zipDEM(USGS Digital Elevation Model): Resolution: 10 meter
Quadrangle: Williamsburg Coordinates: UTM Zone 18 Datum: NAD1927
Wmbg_DEM_10m.zipSRTMDEM(USGS Shuttle Radar Topography Mission Digital Elevation Model)
Resolution: 30 meter Quadrangle: Williamsburg Coordinates: Decimal Degrees
Datum: WGS 1984 Image: Data collected 2002, published 2002
SRTM_Elevation.zipNEDDEM (USGS National Elevation Dataset) Scale:1:24,000
Resolution: 30 meter Quadrangle: Williamsburg Coordinates: Decimal Degrees
Datum: NAD1983 Image: Published 1999
NED_Elevation.zipNLCD (National Land Cover Dataset) Resolution: 30 meter
Quadrangle: Williamsburg Coordinates: Decimal Degrees Datum: NAD1983 Image: Published 1999
LandCover.zip
VECTOR :
TIGER (Topologically Integrated Geographic Encoding and Referencing system)
Quadrangle: Williamsburg Coordinates: Decimal Degrees Datum: NAD 1983
Date of Publication: 1995
TIGER_WMBG.zipNWI (National Wetlands Inventory)Quadrangle: Williamsburg
Coordinates: Decimal Degrees Datum: NAD 1927 Date of Publication:
NWI_DD_27.zipLAKE MATOAKA WATERSHED Quadrangle: Williamsburg
Coordinates: Decimal Degrees Datum: NAD 1927 (Delineated By Dr. Randolph Chambers from the 1984 USGS Topographic Map, GIS work produced
by Timothy Russell)
Watershed_polygons.zip
Watershed_lines.zip
Watershed_Topo_polygons.zip
Watershed_Streams.zipGEOLOGY of LAKE MATOAKA WATERSHED Quadrangle: Williamsburg Coordinates: Decimal Degrees Datum: NAD 1927 ( Digitized from Kenneth F. Bick's 1969 Geologic Map of Williamsburg)
Watershed_Geology.zip
Watershed_Geology_lines.zipSOIL SURVEY of LAKE MATOAKA WATERSHED Quadrangle: Williamsburg Coordinates: Decimal Degrees Datum: NAD 1927 Digitizers: Timothy M. Russell and Daniel C. Thomas (Digitized from the Soil Survey of James City and York Counties and the City of Williamsburg Virginia; USDA April 1985)
Watershed_SoilSurvey.zip
Scanned, Rectified and Mosaiced Soil Survey Image.
Coordinates: UTM Datum: NAD 1927
Watershed_SoilSurvey_Image.zip