The Pagi occurrence is located near the headwaters of Alan Creek on the Nisutlin Plateau, 11 kilometres north of Tootsee Lake in northwestern British Columbia, about 3.8 kilometres south of the Yukon border.

Quartz veins with pyrite, chalcopyrite and galena occupy fractures in quartz monzonite and granodiorite of the Early Cretaceous Cassiar batholith and also argillite of the Upper Paleozoic (Early Mississippian and older) Dorsey assemblage.

In 1968, Emperor Mines Ltd. completed an exploration program that included creating a topographic map, surface workings were surveyed, geological mapping, electromagnetic survey, bulldozer trenching, and several open cuts were blasted in bedrock. In addition, 16 kilometres of access road in the Yukon and 6.4 kilometres in British Columbia were built.