Lonesome Lake Trail is a 3.1 mile heavily trafficked loop trail located near Lincoln, New Hampshire that features a lake and is rated as moderate. The trail is primarily used for hiking, walking, camping, and snowshoeing and is best used from May until October.

This trail is located in the southern most parking area of Lafayette Campground which is located on I-93 about midway between the towns of Lincoln and Franconia.

The AllTrails website has a description and map of a hike at Lonesome Lake.