The mountain has been the site of two research facilities. In 1903, a meteorological observatory building was completed atop Sanson Peak. This building still exists and visitors can look through a window to see its interior complete with rustic furnishings. In the winter of 1956-57, the National Research Council built a small laboratory on Sanson's Peak in order to study cosmic rays as part of Canada's contribution to the International Geophysical Year (IGY). The Sulphur Mountain Cosmic Ray Station remained in operation until 1978 and the building was removed in 1981. A plaque now marks the site's location.