Gap Mountain is so-named for a prominent saddle or gap between its twin summits as seen from the west in Troy. The key attractions at Gap are the stunning vista of Mt. Monadnock looming just to the north and the summer high- and low-bush blueberry crops ringing the open ledges of the north summit. Volunteer land stewards from the Forest Society periodically maintain the openings along the upper reaches of the trail to help sustain the blueberries. The forest on Gap Mountain is a legacy of extensive farm pastures which formerly extended over the entire mountain, including the 1,862 foot summit. Today, the lower slopes of Gap Mountain are cloaked in second-growth forest of white pine and red oak. The remains of a former apple orchard can be found along the excellent hiking trail from the Jaffrey trailhead on the east, which crosses the historic stonewall-lined Gap Mountain Road.
I did this on a wintry overcast day in January, with several inches of new snow covering an icy crust on the trail. With microspikes strapped on, it was a lovely, gentle walk on the Spur Trail which merges with the Metacomet-Monadnock Trail at .4 mi. This trail crosses a brook and meanders through the forest slope through stone walls and across an old woods road, then ascends a nicely built stair system while the ascent becomes steeper. There is a gentle rock scramble before the forest gives way to scrub and emerges on a the Middle Peak of Gap Mountain (1,840') at 1.2 mi. from which there are really nice 360 degree views. Pushing along to the north-west, the North Peak (1,820') is attained at 1.4 mi. at which there is a cairn marking the summit. Both peaks provide a spectacular view of Mount Monadnock just to the east. Just about two hours out and back. It is a fun walk, one I will definitely do again.
Michael C. on Gap Mountain Trail
Easy hike, with blueberries!