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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User Alert:

May 29, 2019: EVALIDator users:
Users running ratio reports using growth, removals or mortality estimates should ensure they select “Output estimates and sampling errors”. If “Output estimates” only is selected the output is inaccurate. We are working to correct this anomaly. Thank you for your patience.

May 24, 2019: EVALIDator users:
EVALIDator's choropleth mapping is currently not working. We are working to resolve the issue, and apologize for the inconvenience.

For EVALIDator and DataMart users wishing to know what has recently become available see this page:

May 29, 2018: The online tool, FIDO, is no longer being supported. We encourage people to use either DATIM or EVALIDator for their data needs. Thank you.

September 22, 2015: The EVALIDator is unable to produce estimates of growth, removals and mortality for multiple inventories when "Trend analysis" is chosen as the row classification variable and the inventories chosen have different sampling designs (i.e., a mix of periodic and annual inventories). In the event that a user inadvertently runs such a retrieval the EVALIDator will return zeroes for the periodic inventories and the correct numbers for the annual inventories. We are sorry for any inconvenience.

For more information contact any of the following:

Jim Menlove RMRS ( 801-625-5426

Glenn Christensen PNW ( 503-808-2064

Charles Barnett NRS ( 603-868-7620

Carol Perry SRS ( 828-257-4236

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USDA Forest Service
Last Modified: March 15, 2019

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