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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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*** Notice ***   The CIO performs regular maintenance updates on our servers on Friday nights between 9 and 11 pm EST. Online tools may be briefly unavailable during the maintenance window. Thank you for your understanding.

User Alerts:
  • Jun 21, 2022: Warning: Estimates and statistics based on Alaska borough and census areas may be misleading! 
    FIA’s Alaska inventory is ongoing and many survey units have yet to be sampled. The FIA inventory Alaska survey unit boundaries do not follow Alaska’s borough and census area boundaries or ecoregions. The survey units were outlined broadly encompassing major watershed boundaries. Because much of Alaska is not organized into a recognized borough (county equivalent), the FIA program utilizes the Census Bureau Census Area boundaries as the county equivalents in those areas. However, Alaskan borough and municipality boundaries have changed multiple times since the inception of the FIA annualized inventory (~2004). The Census Bureau has also frequently changed Alaskan Census Area boundaries over that same timeframe. Therefore, any FIA reported estimates reflect only the Alaska survey units involved. Any estimates and summary statistics calculated based on borough or Census Area spatial extents may be misleading due to the variability of these features. For more information please see the supporting documentation here.

  • Nov 4, 2021: Warning! ATIM reports using either County, Unit, or NFS Administrative Forest Code ALP as the column format selection will result in inaccurate results in both the Excel and XML output. This issue is not present with HTML output.

  • Aug 6, 2020: We are in the process of updating periodic remeasurement datasets for some states. You can find the list of affected states and their associated evaluation groups along with supporting documentation here.

For more information contact any of the following:

Rocky Mountain Research Station - Analysis Team   (SM.FS.RMRSFIA_Help@usda.gov)

Pacific Northwest Research Station - Glenn Christensen (glenn.christensen@usda.gov) 503-808-2064

Northern Research Station - Charles Barnett NRS (charles.barnett@usda.gov) 603-868-7620

Southern Research Station - Carol Perry (carol.perry@usda.gov) 828-257-4236

Data and Tools
DATIM

DATIM


The Design and Analysis Toolkit for Inventory and Monitoring (DATIM) provides four modules: an analysis tool for inventory and monitoring (ATIM) used for creating tables; a spatial intersection tool (SIT); a design tool for inventory and monitoring plans (DTIM); and a data compilation system (DCS) to add FVS attributes to DATIM datasets.

Photo by US Forest Service, Northern Research Station
FIA Data Mart

FIA DataMart


The FIA DataMart allows visitors to download raw FIA data in comma delimited tables, SQLite databases, and customizable batch estimate workbooks. The DataMart map also provides a quick visual reference for the most recent data available for each state or inventory area.

Photo by Sjana Schanning, US Forest Service, Northern Research Station
State Fact Sheets

State Fact Sheets


The State Fact Sheets tool allows visitors to view FIA state fact sheets via an interactive experience. Click on the desired state on the map to produce a real-time fact sheet of that state based on current FIA data.

Photo: Screen shot of State Fact Sheets tool
EVALIDator

EVALIDator


EVALIDator allows users to produce a large variety of population estimates and their sampling errors based on the current FIADB.

As of June 10,2022, EVALIDator 2.0 is LIVE!

Photo by US Forest Service, Pacific Northwest
Urban Data Mart

Urban DataMart


The Urban DataMart allows visitors to download raw urban data, as well as Urban FIADB User Guides.

Photo by Sjana Schanning, US Forest Service, Northern Research Station
My City's Trees

My City's Trees


The My City's Trees application enables anyone to access Urban FIA data and produce custom analyses and reports. Currently, My City's Trees includes information for all targeted cities with a complete certified dataset. At full implementation, the application will serve an estimated 100 cities with new cities coming on line as new data sets are completed and certified. Urban FIA is a continuous inventory with data sets being updated as remeasurement data becomes available.

Photo: My City's Trees logo
Batch Reports

Batch Reports


Batch Reports is a workbook that allows visitors to produce multiple reports with a single click of a button.

Photo by Mary Miller, US Forest Service, Rocky Mountain Research Station
Spatial Data Services

Spatial Data Services


Spatial Data Services (SDS) provides geospatial customer support, such as: generating FIA data summaries for a particular area of interest or preforming spatial overlays between plots and spatial data provided by customers.

Photo by US Forest Service
FIA Geospatial Showcase

FIA Geospatial Showcase


The FIA program actively shares data and tools, but forest inventory data is difficult to use and complex in its interpretation. Therefore, we also need to share our capacity to analyze and understand forest resources. To that end, the FIA Geospatial Showcase makes it easier for people to use the data - at both smaller and larger scales - by integrating FIA's measurements with remotely sensed observations (e.g., satellite data).

Photo by US Forest Service
NWOS Table Maker

NWOS Table Maker


The National Woodland Owner Survey (NWOS) Table Maker allows visitors to create custom tables based on data collected during the years 2002-2006.

Photo by US Forest Service, Pacific Northwest
NWOS Dashboard

NWOS Dashboard (NWOS-DASH)


The National Woodland Owner Survey (NWOS) Dashboard is an interactive, on-line tool that visitors can use to explore the NWOS data by attribute and make comparisons among States and Regions by selected attribute of interest.

Photo by US Forest Service, Northern Region
TPO Tool Kit

TPO Tool Kit


The Timber Products Output (TPO) Tool Kit provides five reporting tools: the TPO Interactive Reporting Tool, TPO Data Download, TPO One-Click Fact Sheets, TPO Reporting Tool-Legacy and the User Customizable (TPO Explorer) Reporting Tool. These tools provide TPO data including estimates of timber products, logging residue, mill residue, residential fuelwood, and other removals in tables, fact sheet or in granular form.

Photo by Sjana Schanning, US Forest Service, Northern Research Station
Training and Tutorials

Training and Tutorials


Training and Tutorials allows visitors to learn how to use FIA's online tools through presentations, example exercises and tutorials. Sign up for the next scheduled training session and get started!

Photo by Lance Cheung, USDA
Other Data

Other Data


The Other Data page provides links to Forest Health Monitoring (FHM) and P3 data.

Photo by US Forest Service, Pacific Northwest
Customer Service

Customer Service


Customer Service page provides information and links to FIA contacts for questions or problems.

Photo by Mary Miller, US Forest Service, Rocky Mountain Research Station

USDA Forest Service
Last Modified: March 29, 2023


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