United Airlines Flight 409 was a scheduled flight departing from Denver, Colorado to Salt Lake City, Utah on October 6, 1955. The aircraft registration number was ‹The template Airreg is being considered for deletion.› N30062, a Douglas DC-4 propliner. The aircraft crashed into Medicine Bow Peak, near Centennial, Wyoming, killing all 66 people on board (63 passengers, 3 crew members). The victims included five female members of the Mormon Tabernacle Choir and military personnel. At the time, this was the deadliest airline crash in the history of American commercial aviation.