Browse by Subject
Contact Information

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

You are here: Home / Research Programs / Forest Inventory and Analysis / Data Collection
Data Collection

In most of our states fieldwork is completed by USDA Forest Service personnel alone or in some cases in conjunction and cooperation with State personnel. Forest Health data collection is also completed by Forest Service personnel, although State organizations generally have a more active role in the fieldwork.

The field Inventory crew individuals collect basic forest resource data; locate selected points on the ground from aerial photographs or other imagery; run compass lines and measures distances; make plot and tree measurements; identify all woody vegetation on selected plots; classify stands according to forest type, age, site index and various land use classes.

Field Inventory crew individuals count stumps on Inventory plots and contact landowners, county and state officials, and others to collect information on timber removals and to determine land ownership, ownership size, and ownership tenure.

CORE FIA Program:

Field Guide: P2

Field Guide: P2+

Field Guide: Other


P2 9.2 Certification
(These are large files please be patient.)

P2 9.1 Certification
(These are large files please be patient.)

P2 + Certification
(These are large files please be patient.)

Certification Tests

Contractor Information

Site Index Booklet


Species Aides

Landowner Letters and Postcards

FIA Commonly Used Job Hazard Analyses

Quality Assurance
(These are large files please be patient.)


Last Modified: 01/27/2023