RED FEATHER LAKES, Colo. (AP) – Firefighters have made progress building lines to contain a wildfire in northern Colorado near the Wyoming border.

The Roach Fire was estimated to be burning on about 250 acres Tuesday in northwest Larimer County in the Roosevelt National Forest, about 3 miles south of the Wyoming line. Fire officials say it is 10 percent contained.

No structures are threatened. U.S. Forest Service officials say the nearest structure is six miles away.

The fire is burning in lodgepole pine that has been hit with mountain pine beetle, so there is dead wood to burn.

About 100 people are fighting the blaze, which was reported Monday afternoon. Three single-engine air tankers, a heavy air tanker and two helicopters are on the scene.

The cause of the fire is under investigation.

(credit: CBS)

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