On the afternoon of Saturday, September 1st, Terence (Terry) Jones, 56, and Marion Jones, 49, were dropped off at the Chapin Pass trailhead on Fall River Road in the northern portion of the park. They had a backcountry permit to stay at the Flatiron backcountry campsite near Hague Creek that night. On Sunday, their plan was to hike north via the Cache la Poudre River trail and Big South trail out to the Big South trailhead. On Monday night, their car was located outside of the park at that trailhead. Nobody in their family has heard from them since Saturday. Rangers are working on containment and confinement of the area near the Chapin Pass trailhead and of the Mummy Pass trail leading in from Corral Creek. Other backcountry campers who were staying at sites in the same area Saturday night are being contacted to see whether the Jones’ made it to their Flatiron campsite. This would help narrow down a point last seen for the couple. Larimer County Sheriff’s Office Emergency Services and Larimer County Search and Rescue are searching trails outside of the park in the Comanche Peak wilderness area. Both of the Jones’ are experienced backpackers with gear and equipment to spend the night outdoors. Neither has any pre-existing medical conditions.