Search and rescue teams located a missing 34-year-old hiker alive Saturday afternoon after a grueling three-day operation deep within Grand Canyon National Park. The hiker, identified as Denver resident Colin Mercer, was found in a remote side canyon approximately two miles off the Bright Angel Trail, suffering from severe dehydration, hypothermia, and a suspected ankle fracture. He was airlifted to Flagstaff Medical Center, where doctors reported his condition as stable.
Mercer had set out on a solo backpacking trip Wednesday morning, entering the canyon via the South Kaibab Trail with plans to camp at Bright Angel Campground and return via the Bright Angel Trail on Thursday. When he failed to check in with family members Thursday evening and did not arrive at the South Rim trailhead, his sister contacted park authorities to report him missing.
Grand Canyon National Park initiated a search operation early Friday morning, deploying a team of 22 experienced search and rescue rangers along with volunteer members of Coconino County Search and Rescue. Park Superintendent Dr. Rebecca Watkins described the operation as complex due to the vast and rugged terrain involved. “The inner canyon presents enormous challenges for search teams,” Watkins explained at a Saturday evening press briefing. “The terrain is steep, access is extremely limited, and weather conditions can change rapidly.”
The search was complicated by a communication dead zone in the inner canyon, where cell phone signals are virtually nonexistent. Rescue teams relied on satellite communication equipment and visual sweeps conducted from helicopter flyovers. On Friday afternoon, a helicopter crew spotted what appeared to be a signal mirror flash from a side canyon west of the main Bright Angel corridor. Ground teams were redirected to the area but were unable to reach the location before nightfall forced them to establish a forward camp.
Saturday morning, a four-person ranger team descended into the narrow side canyon and located Mercer at approximately 1:30 p.m. He was found sheltered beneath a rock overhang, conscious but disoriented. According to Lead Ranger James Whitehorse, Mercer had apparently lost the trail Wednesday afternoon when he ventured off the established path to photograph a rock formation. While attempting to find his way back, he slipped on loose scree and injured his ankle, leaving him unable to hike out.
Mercer told rescuers he had survived by rationing a small amount of remaining water and food in his pack and by collecting condensation from rocks during the cold overnight hours. “He showed remarkable composure and good survival instincts,” Whitehorse said. “His decision to stay in one location rather than trying to move on an injured ankle almost certainly saved his life. Moving through that terrain in his condition could have been fatal.”
The rescue required a technical rope operation to extract Mercer from the side canyon before he could be transported to a helicopter landing zone near Plateau Point. A park service helicopter completed the airlift to the South Rim, where an ambulance transported him to the Flagstaff hospital. His family was at his bedside Saturday evening and expressed profound gratitude to the rescue teams.
Park officials used the incident to reiterate important safety guidance for canyon hikers. Rangers emphasized the importance of filing detailed trip itineraries, carrying emergency communication devices such as personal locator beacons, traveling with a partner when possible, and staying on established trails. The Grand Canyon sees an average of approximately 300 search and rescue incidents annually, and winter conditions add additional risks including shorter daylight hours and freezing temperatures at the canyon floor overnight. Mercer is expected to make a full recovery and told rescuers he plans to return to the canyon once healed, but with a partner next time.
