About 37 miles of trails in the Boise Foothills were closed Saturday afternoon because of damage from fires this week.
The Bureau of Land Management said crews found most of the trail system markers were burned, bridges and trail support structures were destroyed and steel posts used to support log cribs are protruding dangerously along many trail segments.
Fire broke out Monday afternoon and within a couple of days had traveled more than six miles toward the Bogus Basin Ski Area. It was listed at 14,216 acres Saturday afternoon but 70 percent contained.
The burned portion of the Ridge to Rivers Trail System between Rocky Canyon and the Bogus Basin Road is affected. Federal officials said the burned portion of the trail will remain closed until detailed damage assessments can be completed and repairs completed.