USDA Forest Service

Forest Inventory and Analysis National Program


Forest Inventory & Analysis
National Office
U.S. Forest Service
1400 Independence Ave., SW
Washington, D.C. 20250-0003

(703) 605-4177

United States Department of Agriculture Forest Service.

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Spatial Data Services

Introduction to Spatial Data Services

Forest Inventory and Analysis produces and maintains a set of public databases that can be downloaded and used by anyone.

These databases are a valuable resource for many different natural resources questions, such as forest resource assessment, wildlife habitat modeling, fire and pests threat assessment, forest economics, and forest change detection.

In order to protect the integrity of the FIA sample, the exact coordinates of plot locations are kept confidential. This protects the privacy of landowners who allow FIA field crews onto their land, as well as protects the plots from tampering. Exact plot locations are protected under the Food Security Act of 1985, Public Law 99-198 Stat. 1657, December 23, 1985, Confidentiality of Information, 7 U.S.C. 2276, as amended through Public Law 106-850, Dec 31, 2000.

The Spatial Data Services team was created to link researchers with FIA data. We work to provide customers with the information they need in a way that does not compromise the security of the plot locations. We also provide advice and guidance on the proper use of FIA data.

The Spatial Data Services team provides several services, such as:

  • Helping clients acquire and use the public FIA database, which includes the perturbed plot coordinates

  • Performing spatial summaries of FIA variables for a particular area of interest

  • Performing spatial overlays between plots and geospatial data provided by our customers












USDA Forest Service
Last Modified: April 7, 2020

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