a National Geographic history of Australopithecus at the resort was killed when their Convair 440 aircraft (N4819C) flew into a ridge shortly after an evening take-off from Eastern Sierra Regional Airport in Bishop, killing all 35 on board including 31 Wolper crew members—although not Wolper himself. The filmed segment was recovered in the wreckage and was broadcast in the television show Primal Man. The National Transportation Safety Board was unable to determine the cause of the accident, and the resort sold the airline. Sierra Pacific previously operated scheduled passenger flights with turboprop aircraft between Mammoth Lakes and Burbank, Fresno, Los Angeles and Las Vegas. On April 6, 2006, three ski patrollers at the ski area perished due to a combination of CO2 and hydrogen sulfide (H2S) poisoning. Both gases are present on a known dangerous fumarole on the mountain and were more concentrated on that day because the fumarole had been covered by snow for days. Four patrollers, including John "Scott" McAndrews and James Juarez, were raising the fence around the fumarole, which had become buried due to heavy snowfall. The fumarole had melted a cavern below the snowbridge which collapsed under James and Scott. The pair of men fell and perished within a matter of minutes. Another ski patroller, Walt Rosenthal, perished and seven others were injured trying to rescue James and Scott. The oxygen masks used by the Mammoth Mountain ski patrol did not completely seal outer gases from coming in. Sale to Intrawest In January 1996, Intrawest Corporation and Mammoth Mountain Ski area announced that Intrawest Corporation had purchased 33% of Mammoth and June Mountain ski operations, as well as all of the developable real estate owned by Mammoth Mountain Ski Area. In 1998, Intrawest increased their partnership interest to 58%. The development of three new village areas: The Village at Mammoth, Sierra Star, and Juniper Springs, has brought new developments to the resort. The Village at Mammoth, a European-style and pedestrian-only complex, was built in a style similar to other Intrawest properties, such as Whistler in British Columbia or Keystone in Colorado. The Village opened in 2003 with various stores, restaurants, galleries and 166 luxury condominiums. The 15-passenger Village Gondola, which departs from the Village, transports skiers and snowboarders directly to the Canyon Lodge base. Sale to Starwood Capital On February 23, 2005, Dave McCoy announced the pending sale of his stake in Mammoth Mountain, after