Big Rock Fire Expands to 2,500 Acres, Evacuations Ordered
The Big Rock Fire in Eastern Idaho has grown to 2,500 acres as of Sunday, August 2, 2026, with zero containment reported. The fire has breached containment lines in the Cress Creek area and is now threatening new areas in Madison County, including the Kelly Canyon Resort. More than 30 homes are currently at risk, and two structures—a shed and an electrical outbuilding—have already been lost. The National Weather Service has issued a Red Flag Warning due to high temperatures, low humidity, and gusting winds, which are expected to exacerbate fire conditions. Evacuation orders have been issued for residents along South Snake River Road from Heise to 10000 South, with shelters available at South Fork Elementary School in Rexburg.