William Halliday, director of the Western Speleological Survey, claimed in his 1983 pamphlet Ape Cave and the Mount Saint Helens Apes that the miner's assailants were actually local youths. Until the eruption of Mt. St. Helens, counselors from the YMCA's Camp Meehan on nearby Spirit Lake brought hikers to the canyon's edge and related a tradition that the 1924 incident was actually the result of young campers throwing light pumice stones into the canyon, not realizing there were miners at the bottom. Looking up, the miners would have only seen dark moonlit figures throwing stones at their cabin. The narrow walls of the canyon would have served to distort the voices of the YMCA campers enough to frighten the men below.