Mt. McKinley Claims 5th Life This Year Climber apparently suffered heart attack soon after reaching the summit By Mark Russell, Newser Staff Posted Jun 12, 2011 6:12 AM CDT 4 comments Comments DENALI NATIONAL PARK, ALASKA - UNDATED: General view of the West face of Mt. McKinley in Denali National Park in Alaska. (Getty Images) (Newser) – A 52-year-old climber died on Mt. McKinley yesterday, soon after reaching the 20,320-foot summit, reports Reuters. After a 20-hour climb, Brian Young returned to the high camp, 3,000 feet below the summit, when he apparently suffered a heart attack and stopped breathing. Attempts to revive Young failed. His death brings the total number of deaths on McKinley this year to five. About 1,200 to 1,300 people climb McKinley each year.