Teton County Flood Study Project

Teton County and the City of Choteau have been working with the Federal Emergency Management Agency (FEMA) and Montana Department of Natural Resources and Conservation (DNRC) to produce new and updated floodplain maps for the Teton River, Sun River, Spring Creek, Deep Creek, Muddy Creek and Tributaries. The project includes updating all the existing mapped floodplains in the county and adding a few more miles to existing mapped floodplains. 

Updated floodplain maps will depict the latest, most accurate flood risk data, and will eventually result in updated FEMA floodplain maps. Many of the existing floodplain maps are based on data from the late 1970s. For more information see: Floodplain FAQs Flood Study Process