Coleman State Park lies on the shore of Little Diamond Pond in Stewartstown, twelve miles east of Colebrook in New Hampshire’s remote north country. The excellent trout fishing in Little Diamond Pond and nearby streams makes Coleman an excellent location for fishing enthusiasts, as well as hunting enthusiasts.

The campground at Coleman State Park offers 25 campsites with ATV camping. It is open for walk-in campers beginning in May.

This park is always open for recreation unless closed or restricted by posting. During the off-season, the park is typically not staffed and comfort stations are not available.