Two exposures of manganese occur in an area underlain by Mississippian to Triassic Cache Creek Group rocks consisting mainly of folded, cherty quartzites. These rocks trend northwesterly and normally dip steeply to the northeast. One showing consists of pyrolusite and psilomelane, with thin seams of sandy, yellow clay, forming a small lens having a maximum width of about 1.2 metres and a length of 3.0 metres. At the second showing manganese minerali- zation occurs across a width of about one metre. In some cases individual quartzite beds up to about 5 centimetres in width have been almost completely replaced by manganese oxides.