The Historic Fires Database (HFD) and specifically the Fires1950 to Present polygon feature class was initially developed to support the NASA RECOVER wildfire decision support system (DSS) at Idaho State University's GIS Training and Research Center (GIS TReC). Visit http://giscenter.isu.edu/research/Techpg/HFD/index.htm for additional details. A minimum mapping unit (MMU) of 1 acre (4,046 sq. meters) was applied on May 31st 2022 to eliminate potential errors (slivers) as well as prescribed fire slash pile fires.

This is a relational database. Some fires may have more than one unique identifier. Additional identifiers can be found in the Alternate_info table using the FireID field as the relate field. A relationship class has already been setup to aid the consumer. Using ArcGIS you can view related data by first selecting a fire (polygon) and then view the related data to see any additional unique identifiers that may be associated with this fire.

This feature class have been updated to include 2021 wildfires. The last edit session was completed on May 31st, 2022.