The Bowden Creek deposit is located on the west side of the Cutoff Valley, 400 metres west of Highway 12 and 8.5 kilometres southwest of Clinton.
The deposit consists of a limestone bed hosted in a 460 metre thick Permian(?) sequence of mafic flows, tuff, chert and argillite of the Carboniferous to Jurassic Cache Creek Group. This sequence is overlain by massive Middle to Upper Permian limestones of the Marble Canyon Formation (Cache Creek Group). The strata have been folded into the Fortytwo Creek anticlinorium, a broad north west trending structure complicated by faulting and smaller scale folding.
The limestone bed strikes 017 degrees over an exposed length of 660 metres and dips vertically. The unit varies up to 170 metres in exposed width. Several vertical faults cut the deposit.
The bed is comprised of fine grained, bluish grey and white mottled limestone. A chip sample, taken across a 60-metre wide quarry face, assayed 55.24 per cent CaO, 0.30 per cent MgO, 0.46 per cent insolubles, 0.30 per cent R2O3, 0.04 per cent Fe2O3, 0.030 per cent MnO, 0.071 per cent P2O5, trace of sulphur and 43.57 per cent ignition loss (Minister of Mines Annual Report 1958, p. 92, Sample 2). A second, 46 metre long, chip sample assayed 55.63 per cent CaO, 0.19 per cent MgO, 0.48 per cent SiO2, 0.14 per cent Al2O3, 0.07 per cent Fe2O3 and nil sulphur (CANMET Report 811, p. 225, Sample 105).
The deposit is estimated to contain reserves in excess 900,000 tonnes of high purity limestone (George Cross Newsletter #220, 1969).
A small quarry was opened up on this deposit sometime prior to 1958 but no production figures are available. Mutual Mining & Refining Ltd. was considering putting the property back into production in 1969.