Gap Mountain in Troy, New Hampshire, is a small three-summit monadnock known for its open north and middle summits, broad rural views, and distinctive cleft separating the wooded south peak from the other two. The Metacomet-Monadnock Trail crosses its open tops, making it a scenic stop on the long route to Mount Monadnock. Once cleared for pasture by nearby dairy farmers, the mountain gradually regrew, leaving unusual blueberry heath and wildflowers on its exposed upper slopes. Its protection came through a long local conservation campaign that began in the 1960s and eventually preserved more than 1,100 acres from development.