A large pumice outcrop adjacent to the Mount Meager massif has been mined several times in the past, and extends more than in length and in width with a thickness of about . The deposit was first hired by J. MacIsaac, who died in the late 1970s. In the mid 1970s the second hirer, W.H. Willes, investigated and mined the pumice. It was crushed, removed then stored close to the village of Pemberton. Later, the bridge that was used to access the pumice deposit was washed out. Mining operations resumed in 1988 when the deposit was staked by L.B. Bustin. In 1990, the pumice outcrop was bought by D.R. Carefoot from the owners B. Chore and M. Beaupre. In a program from 1991 to 1992, workers evaluated the deposit for its properties as a construction material, absorber of oil and stonewash. About of pumice was mined in 1998 by the Great Pacific Pumice Incorporation.