Atlas of digital polygon fire extents for Idaho and western Montana: 2nd edition

This coverage includes fire perimeters recorded from 1889 through 2008 in polygon coverages acquired from 12 National Forests and two National Parks as described in the Data Set Credit section. It includes 7,550 fire polygons recorded from an area covering 13,839,584 hectares that include 44% of Idaho, Montana west of the Continental Divide, and Yellowstone National Park.Compile all digitally documented fire perimeters on National Forest and Park lands in the northern Rocky Mountain region in order to infer the climate drivers of regional-fire years.The first edition of these data was made available on 05/07/2009 (see Cross-Reference section), and included data from 1889-2003. This second edition adds fire polygons for five additional years of data. Minor metadata updates were made on 12/20/2016 and 01/17/2025.