Frequently Accessed Data Layers
A collection of commonly used GIS datasets for Tennessee. Most data are maintained in Tennessee State Plane, NAD83, units feet, to enable overlay and integration functions, and are organized by theme.
Valuable Spatial Data Links
NRCS Data Gateway - http://datagateway.nrcs.usda.gov/
Available Data – Watershed Boundaries, DRGs, USGS Quadrangle Indexes, Elevation Data, Imagery, Land Use Data, Crop Data, Geographic Names, Geology, Soils.
USGS NHD (National Hydrography Dataset) – http://nhd.usgs.gov
Available Data – Watershed Boundaries, Streams and Rivers, Waterbodies
Tennessee OIR GIS State Basemap Program - http://gis.tn.gov/
Available Data – Cadastral Data, DFIRM, Education, Legislative, Transportation, Imagery
County Seat Locations
Watersheds (HUC - 12 digit and 8 digit) - NEW!!
303D Streams - NEW! 2006 draft
Soils (STATSGO - 1:250,000)
Soils (SSURGO - 1:20,000)
Interstate Highways - mile posts, ramps, road segments, road descriptions, road geometry
7.5' Quad Grid
7.5' Quad Maps of Tennessee Coal Fields (DWG)
National Grid for Tennessee
Aerial Photographs of the Tennessee Coalfield