Mountains-to-Sea Trail | Segment 3
The High Peaks & Asheville - Pisgah Inn to Black Mountain Campground
By Jim Grode and Friends of the Mountains-to-Sea Trail (https://mountainstoseatrail.org/segment/3/):
This is a massive loop which uses part of but not all of 3 different Rail Trail systems. These were at one point all railways. The 3 trail systems are the Ottawa Valley Recreation Trail, the K & P Trail, and the Cataraqui Trail.
https://www.ottawavalleytrail.com/
https://www.frontenaccounty.ca/en/things-to-do/kp-trail.aspx
This route is a combination of 2 established FKT routes in the small rural mountains of southwestern New Hampshire, combined for 123 miles and 25300 feet of vertical climbing feet. The first route is the SRKG or Sunapee Ragged Kearsarge Greenway, a 75 mile loop that summits the three aforementioned mountains and hosts annual 75 mile 3 day race https://www.srkg.org. The route for the FKT starts and finishes atop Mount Sunapee in Newbury, NH.