Thornton Gap is a gap located in Grafton County, New Hampshire. It appears on the Waterville Valley USGS 7.5-minute topographic quadrangle. The nearest populated place is Tripoli Mill, approximately 1.3 miles to the NW.
Grafton County · New Hampshire
Thornton Gap is a gap located in Grafton County, New Hampshire. It appears on the Waterville Valley USGS 7.5-minute topographic quadrangle. The nearest populated place is Tripoli Mill, approximately 1.3 miles to the NW.