CORNWALL, Conn. (AP) A stubborn, low-grade fire is still burning in northwestern Connecticut after more than a month.

The slow-moving Flat Rock Fire has been burning mostly underground, affecting more than 80 acres in the Wyantenock State Forest in Cornwall, the Hartford Courant reports.

Christopher Martin, director of the forestry division at the Department of Energy and Environmental Protection, says smoke from the fire has drifted over the town line into Sharon and Warren. He says the fire doesn't pose a threat to area residents or their property.

When it surfaces from below ground, the flames are only 6-to-8 inches high.

Martin says ``it's definitely more of a nuisance than a safety threat.'' He says DEEP and local firefighters are managing the fire, which is too remote for traditional firefighting.