Taken from Wikipedia:

The American Tobacco Trail (ATT) is a 22.6-mile (36.4 km) long Rails-to-Trails project located in the Research Triangle region of North Carolina, running along an abandoned railroad bed originally built for the American Tobacco Company in the 1970s. The route crosses through the City of Durham, Durham County, Chatham County, and Wake County. The ATT is part of the East Coast Greenway and is open to pedestrians, cyclists, equestrians (in non-urban sections) and other non-motorized users.

From November 7th, 2015 - June 26, 2020, 15,000 people completed the Mission Trails Regional Park 5-Peak Challenge.  The goal of the program was to challenge visitors to summit all five peaks in the Park - Cowles Mountain, Pyles Peak, Kwaay Paay, South Fortuna and North Fortuna.  Most complete each hike separately, taking a selfie at the top of each peak.  The route here, as described in the book “Afoot & Afield - San Diego County,” strings all five peaks together.