The memorial of Ko Sang Don, located at 1,100 meters on Mount Halla, Jeju Island, Korea. Ko Sang Don was the first Korea to climb Mount Everest in 1977. He was killed on Mount McKinley May 29, 1979. Left to right are three of the four surviving members of the 1979 Korean McKinley Expedition: Harry Maringas, Park Hoon Kyu, Chu Young.