White Mountain Attractions Association

Bryn Pinzgauer / Flickr Creative Commons

Lost River Gorge is closing early before one of its busiest weekends because of a brush fire in North Woodstock that has spread to about 70 acres.

The fire started Tuesday on a cliff in Kinsman Ridge over the gorge. The cause of the fire is still unknown.

More than 100 firefighters from five towns across the state and three helicopters have been working to extinguish the flames.

NH Division of Forests and Lands

Firefighters continue to work to contain a forest fire on Dilly Cliff, which has led to the closure of the Kinsman Ridge Trail area of the Appalachian Trail in North Woodstock.

The fire has burned about 22 acres. It is land owned by the Society for the Protection of NH Forests and the White Mountain National Forest.