Highland Lake is a 206 acre lake in East Andover, New Hampshire located in Merrimack County, about 35 minutes from the capital city of Concord and about 15 minutes from the city of Franklin. It’s a lightly populated lake and very tranquil. Not a lot of homes come up for sale on this lake but when they do, they are often very popular. A contour map of the lake can be found here. Power boats are permitted.