Mount Jackson via Webster-Jackson Trail

The Mount Jackson via Webster-Jackson Trail is 4.9 miles round trip, starting at Webster-Jackson Trailhead. At AMC book time (half the distance in hours plus 30 minutes per 1,000 ft of climbing), that works out to roughly 2-5 hours. Most parties take longer than book time on rough or above-treeline terrain, in winter, or with a heavy pack.

The Mount Jackson via Webster-Jackson Trail climbs about 2,140 ft over 4.9 miles, an average of roughly 433 ft of gain per mile. That figure is cumulative ascent across the whole out-and-back, not the difference between the trailhead and the high point.

HikerNerd rates the Mount Jackson via Webster-Jackson Trail Moderate on a six-tier scale from Easy to Most demanding. The rating comes from the route itself: its 4.9 miles, 2,140 ft of gain, and the steepest quarter mile of trail, with routes known for scrambles or ledges rated a step harder. It is the same scale our NH 4,000-footer difficulty ranking uses. Above-treeline exposure, water crossings, and winter conditions can still make a well-rated route the hardest day of your year, so check current conditions before committing.

The Mount Jackson via Webster-Jackson Trail summits 1 named peak: Mount Jackson.

The Mount Jackson via Webster-Jackson Trail starts at Webster-Jackson Trailhead. Check the trail alerts on this page before you drive: trailhead access and parking in the White Mountains change with closures and construction.