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Middle Fork Complex Fire: Bulldog and Nellie

Unit Information

1249 S. Vinnell Way 
Boise, 
Idaho 
83709 
1249 S. Vinnell Way 
Boise, 
Idaho 
83709 

Incident Contacts

  • Boise National Forest
    Email:
    SM.FS.boise_inbox@usda.gov
    Phone:
    208-384-3266
    Hours:
    8 A.M. - 5 P.M.

Wildland Fire Progression Maps – What are they and how to read them? 08-28-2024

Middle Fork Complex Fire: Bulldog and Nellie
Publication Type: News - 08/28/2024 - 14:25

Maps are invaluable tools that guide us and tell fascinating stories. When it comes to wildland fires, Geographic Information Specialists (GIS) create a series of maps each day to assist Incident Management Teams and inform the community. These maps cover various aspects, including road closures, landscape topography, and ongoing firefighting efforts.

One very informative GIS product is called the Progression Map. This map visually represents how a wildfire has progressed, showing how much acreage was added each day. GIS technicians show each day's growth in a different color and provide a legend listing the amount of acreage affected. For example, on August 14th, the Bulldog Fire grew by 388 acres, while the Nellie Fire increased by 523 acres (see the map here).

By examining a Progression Map, you can gain valuable insights into daily fire activity and track trends over time. We hope this helps you better understand and interpret these important maps.