The annual memorial service honoring military men who died on Mount Rainier more than 66 years ago will took place Aug. 30.

Thirty-two Marines died Dec. 10, 1946, when their military airplane slammed into the face of Mount Rainier while on the final stretch of a journey from San Diego to Seattle. They were part of a group of six military transport planes flying at 9,000 feet altitude. Due to inclement weather, four pilots abandoned their plans and landed instead at Portland, Ore., while another made it safely to Seattle; the final plane, its cargo and crew, remains entombed on the mountain.