The Sam-North Glacier area is underlain by Paleozoic(?) meta- sediments intruded by quartz feldspar porphyry and mafic dykes. The metasediments dip approximately 70 degrees southwest. Scattered boulders with copper, zinc and lead mineralization have been found just below the southwest lobe of the "North Glacier" (MacArthur, R. (1983), Figure 3). The only mineralization found in place consists of copper mineralization in quartz blebs in banded calc-silicate hornfels on the north side of the southwest lobe.