Monitoring a sampling grid of approximately 6.5 million photo points and over 400,000 fields locations on private and public land across the Nation, the FIA program supports a wealth of related information on forest ecosystems and related resources at species, population, biotic community, human and regional scales of resolution. FIA Units also provide opportunities for co-operative research aimed toward its mission from a variety of disciplinary perspectives. Surveys are conducted periodically in all 50 States, with many surveys conducted at 10 year intervals since the 1930's. Data bases are retained in updated formats for the most recent surveys.
Units exist throughout the country to survey the entire United States.
The Starkville USDA Forest Service FIA Unit oversees forest surveys conducted in Alabama, Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, and Texas.