VIA BROOK, BOULDER AND MAIN TRAILHEADS: The trailhead is easy to reach off of Route 11 THere is a sign of the side of Route 11 pointing to the trailhead. Route 11 is a two-lane highway between Alton and Laconia. Mt. Major is five miles north of Alton and fifteen south of from Laconia.
The Brook Trail
Distance: 2.4 miles one way
Elevation Gain: 1150
The trail starts off quick from the parking area on a moderate pitch on a highly eroded section. The trail level out on the top of this section (0.3 miles and become completely level if not descends slightly for the next 0.4 miles. At roughly 0.7 miles you come to intersection where the Main Trail will head left and the Brook Trail will continue straight. Stay on the Brook Trail. The trail continues it gradual to moderate pitch until reaching a col between Mt. Major and Straightback Mountain. It merges with the Belknap Trail turn ledges and climbs over exposed but gradual ledges to the summit.