The Claremont Fire, burning just one mile northeast of downtown Boise in the iconic Boise Foothills, has grown to approximately 4,800 acres as of Wednesday, July 8, 2026 — threatening structures in Boise County and forcing closure of one of Idaho's most popular urban trail networks. Fire managers now predict full containment by July 12 at 6:00 p.m.

Fire Behavior and Spread

The fire ignited on the evening of July 6 in the foothills terrain that borders the City of Boise to the northeast. Fueled by dry grass and shrublands that have experienced below-normal precipitation this spring, the blaze grew rapidly under warm, low-humidity conditions. Boise Fire Department officials declared the blaze a major incident within hours of ignition.

The U.S. Fish and Wildlife Service's Great Basin office is assisting in managing the fire, which burned actively overnight July 6-7, holding south of the 8th Street Extension. A successful burnout operation from Boise Ridge Road to Rocky Canyon Road has since significantly strengthened containment along the critical northern flank.

Evacuations and Trail Closures

Level 2 (Be Ready) and Level 3 (Go Now) evacuation orders were issued for portions of Boise County as the fire moved through steep foothills terrain. The Boise Fire Department also ordered the public to leave the Ridge to Rivers Trail System — more than 190 miles of trails heavily used by hikers, mountain bikers, and runners — as well as adjacent Bureau of Land Management lands.

A formal public land closure is in effect and is anticipated to be lifted on July 11, 2026 at 11:59 p.m., pending fire behavior. Residents and recreationists are urged not to enter the closure area, which is actively managed by firefighters.

Resources Assigned

Firefighters are using a combination of ground crews, bulldozers, and aerial resources to construct and hold containment lines in the rugged foothills. Aircraft have been essential for water drops on active flame fronts in terrain too steep for ground operations.

This incident serves as a stark reminder of the wildland-urban interface challenge facing Boise, where residential neighborhoods abut flammable foothills vegetation. City and county emergency managers emphasized the importance of creating defensible space around homes and heeding evacuation orders promptly.

Key Facts

  • Fire name: Claremont Fire
  • Location: One mile northeast of Boise, Ada/Boise County, ID
  • Size: Approximately 4,800 acres
  • Containment: 0% (containment projected July 12 at 6 p.m.)
  • Evacuation: Level 2 and Level 3 orders active in Boise County
  • Trail closure: Ridge to Rivers Trail System and adjacent BLM lands closed through at least July 11

Residents in evacuation zones should follow all official orders. For the latest information, check the Boise Fire Department and Ada County Emergency Management websites or call 2-1-1 Idaho.