The mission of the GIS Services Division is to provide the highest possible quality geospatial services to users within the State of Tennessee in a timely fashion as economically as possible.
The Division will facilitate the efficient and effective management of the human, cultural, and financial, and natural resources of the State of Tennessee, and its local communities. Geospatial services are defined as technical, management, and administrative consulting, data provision, application development and implementation services of spatial information.
For data see the TENNESSEE Spatial Data Server.. all the data you could need (DRG, DEM, DOQQ) are here for free download. See http://www.tngis.org/