TNMap is Tennessee's portal for downloadable mapping datasets, mapping applications, and map data services, managed by the State of Tennessee's Strategic Technology Solutions (STS) GIS Services group. It is the central access point for authoritative Tennessee geospatial data.
Coverage includes statewide ortho imagery, LiDAR and derived elevation, NG 9-1-1 address points and road centerlines, parcels, and land use, available as downloads and REST/WMS services. A State Agency Open Data Portal and the TNGIC clearinghouse provide additional layers.