Distance: 3.25 miles
Time: 2-3 hours
Directions: I-93 Franconia Notch State Park, Lafayette Place
Trail Map: Franconia Notch trail map
A well marked/traveled trail to a pristine mountain lake with great views of the Franconia Ridge. Park at Lafayette Campground parking area off I-93 south. Trail starts at the left side of the parking lot. Follow the yellow blazed Lonesome Lake Trail. After a mile, High Cannon Trail splits to the right. Stay on Lonesome Lake Trail, as it becomes steep. When you get to the top, take the Cascade Brook Trail along the south side of the lake.The trail rises almost 1,000 feet through open hardwoods most of the way. The mountain slope is steep, but a pair of switchbacks eases the grade substantially.