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Trail Creek, Alder Creek, & Sand Lake Fire Update 09/24/2021

TRAIL CREEK FIRE: Size 56,798 Acres 50% Containment

Fire behavior was moderate yesterday, mostly backing and flanking surface fire within the Nez Perce creek, May creek, and the upper Cabinet Creek Drainage areas. Firefighters continue to look for more opportunities to go direct and improve containment lines. Engine crews are patrolling the north side containment lines and mop up any hot spots. Crews have begun line repair and rehabilitation in areas of the fire that are contained. Structure protection remains in place, monitoring fire behavior and evaluating structures.

ALDER CREEK FIRE: Size 35,524 Acres 45% Containment

The fire continues to back and flack toward control features in the Sawlog creek and Calvert creek areas. Firefighters remain in the area throughout the day, monitoring and evaluating structures and mopping up any hot spots. Line repair and rehabilitation work continues the eastern edge of the fire, with crews and equipment removing hazard trees and cleaning up downed trees and brush.

SAND LAKE FIRE: Size 228 Acres 0% Containment

Fire growth and activity on the Sand Lake fire continues to be minimal. The fire will be monitored by air resources.

Remember The public can expect to see smoke coming from the interior pockets of the fire line until the area receives considerable precipitation or moisture. Firefighters attack the fire directly where it is safe to do so and engage indirectly in areas where it is too steep or dangerous.


Clear skies, light winds, and warmer conditions are expected today. As winds increase over the next day, elevated fire weather concerns may develop.


U.S. Route 93, Highway 43 (Chief Joseph Pass to Wise River), and the Pioneer Scenic Byway

are OPEN to through traffic. Watch for trees, rocks, and critters on the roadways. Travel with caution and remember school has started in the local communities, and hunting season is ongoing.


Portions of the Continental Divide Trail remain closed. The Big Hole National Battlefield is closed until further notice. May Creek Campground and Steel Creek Campground are closed.

Closure orders remain in effect on the Salmon-Challis National Forests, the Beaverhead-Deerlodge National Forest, and the Bureau of Land Management. View the updated closure orders on the respective agency websites and the fires' Inciweb pages.

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