Mount Monroe via Ammonoosuc Ravine

The Mount Monroe via Ammonoosuc Ravine is 7.0 miles round trip, starting at Ammonoosuc Ravine Trailhead (Base Road). At AMC book time (half the distance in hours plus 30 minutes per 1,000 ft of climbing), that works out to roughly 4-7 hours. Most parties take longer than book time on rough or above-treeline terrain, in winter, or with a heavy pack.

The Mount Monroe via Ammonoosuc Ravine climbs about 3,109 ft over 7.0 miles, an average of roughly 446 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 Monroe via Ammonoosuc Ravine Very hard on a six-tier scale from Easy to Most demanding. The rating comes from the route itself: its 7.0 miles, 3,109 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 Monroe via Ammonoosuc Ravine summits 1 named peak: Mount Monroe.

The Mount Monroe via Ammonoosuc Ravine starts at Ammonoosuc Ravine Trailhead (Base Road). Check the trail alerts on this page before you drive: trailhead access and parking in the White Mountains change with closures and construction.