Limestone was produced from three quarries along the Jeune Landing - Alice Lake Road in the vicinity of the southwest shore of Alice Lake.
The quarries lie within a 120-kilometre-long belt of limestone of the Upper Triassic Quatsino Formation (Vancouver Group) that extends discontinuously from Quatsino Sound southeastward to Tlupana Inlet. Locally the limestone is bounded to the west by underlying basalts of the Upper Triassic Karmutsen Formation (Vancouver Group) and intruded to the south by a stock of diorite of the Jurassic Island Plutonic Suite. The limestone strikes northwest and dips 12 to 40 degrees southwest.
The quarried rock generally consists of fine grained, light grey to black limestone that sometimes contains chert nodules. The largest of the three quarries, 0.5 kilometre northwest of the Marble River, exposes fine grained light grey limestone that is intruded by a dyke and several sills. In thin section the rock displays fine grained calcite that is sporadically replaced by coarser dolomite rhombs. A sample of randomly collected chips from the quarry contained 44.59 per cent CaO, 9.43 per cent MgO, 0.46 per cent insolubles, 0.30 per cent R2O3, 0.07 per cent Fe2O3, 0.004 per cent MnO, 0.01 per cent P2O5, less than 0.01 per cent sulphur and 45.31 per cent ignition loss (Minister of Mines Annual Report 1968, p. 318, Sample 13).