The data is from the USDA US Forest Service’s Forest Inventory and Analysis DataMart

available here:

Description of the Data

There are four data sets:

FIADB Reference Table CSV Archive:

The zip files from the first, second, and fourth links have been downloaded and uncompressed into the forest folder. From the FIADB Database Documentation, we downloaded the Database Description User Guide for Phase 2 (version 9.0.1)

Transformations to the original data source