MISSOULA, Mont. -

Missoula fire crews are on the scene of a fire that is spreading quickly in the Grant Creek area, near Colorado Gulch Road. The call came in about 4 p.m. Monday

An update released at 9 p.m. indicates the Colorado Gulch Fire is burning 2.5 acres.

Conditions are windy, fanning the flames and making it difficult for responders. The fire started in the brush but quickly spread into nearby trees. It is burning in steep, forested terrain.

Fire Information Officer Jordan Koppen reports that crews made great progress during the initial attack Monday, and fire activity has diminished in the evening hours.

The blaze is within the Grant Creek subdivision north of Missoula. It's burning on private land and multiple agencies are working to suppress the fire.

Fire engines and equipment from the DNRC, Missoula and Missoula Rural, Lolo Hot Shots and Lolo National Forest, as well as three helicopters and two airplanes responded to the blaze on Monday.

The Grant Creek subdivision and structures are potentially threatened by this fire. Colorado Gulch Road is closed to all but emergency and residential traffic. Officials also ask that folks limit traffic and speed on Grant Creek Road.

Fire danger in Missoula is currently "Very High." Please use caution with any ignition sources.