In 1978, Mapco Inc. staked three claim blocks totaling 386 claims on Zarembo Island that covered much of section 36, T. 64 S., R. 82 E., and the area to the southeast of the creek that flows into the south end of Meter Bight. The claims were staked for molybdenum, fluorine, and uranium (although there is no evidence that any of these particular commodities were found in the succeeding exploration or in the samples that have been analyzed). As briefly examined in 1979 with company geologists, the mineralization then being explored was at an elevation of about 1000 feet near the creek that flows southeast across section 36 (Donald Grybeck, unpublished field observations, 1979). The mineralized exposure consisted of rusty-weathering, light green-gray felsic metavolcanic rocks with small lenses, pods, and layers up to a foot thick that contain disseminated sulfides, mainly pyrite and possibly sphalerite and chalcopyrite. The felsic metavolcanic rocks are interbedded with light gray, silicified limestone and dark gray argillite. Mapping by Karl and others (1999) indicates that much of the area of section 36 consists of the Triassic Hyd Group which hosts most of the volcanogenic massive sulfide deposits in the Duncan-Zarembo belt (Berg and Grybeck, 1980). Grab samples contained less than 5 parts per million (ppm) copper, 50 to 150 ppm lead, 200 to 11,000 ppm zinc, and 150 to 5,000 ppm barium.