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Northern Research Station
One Gifford Pinchot Drive
Madison, WI 53726
(608) 231-9200
(608) 231-9544 TTY/TDD

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Forest Inventory and Analysis

Forest Inventory and Analysis (FIA) collects, analyzes, reports, and distributes data about the Nation’s forests: how much forest exists, who owns it, what condition it's in, where it’s located, and how it's changed.

The Northern Research Station FIA unit is responsible for creating and maintaining a comprehensive forest inventory for 24 States: Connecticut, Delaware, Illinois, Indiana, Iowa, Kansas, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, Vermont, West Virginia, and Wisconsin. The forests in these States cover about 174 million acres or about 30 percent of the land here.

Data from FIA are used everyday to assess sustainability, to make important business decisions, to evaluate wildlife habitat, and for many other things. National, State, and local policy makers, universities, businesses, tribal governments, national forests and other natural resource agencies, interest groups, and many others depend on FIA for timely, scientifically credible information about our forests.

Data Visualizations

Click here or on the regional map below to view interactive visualizaitons based on FIA data.

[Image] Map of Northern FIA Inventory Area.



Last Modified: 10/08/2021

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My City's Trees logoThe My City's Trees application is a web-based application, developed with our partners -Texas A&M University and iTree, that allows users to explore urban forest inventory data associated with U.S. cities, with data from many more cities to come..
Chicago added in October 2021!

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