Joseph (Boulder) Creek (092P 148) and Barriere River are collecting localities for boulders of jasper, rhodonite, and green and red banded chert which are presumably associated with metasedimentary rocks of the Paleozoic Fennell Formation (Slide Mountain Group).

"Barriere River is a more productive stream for rhodonite. The best part of the river seems to be about 4 miles upstream from the bridge over Highway 5. In times of low water, the stream bed is the best source of material but some boulders may be found along the bank" (Geological Survey of Canada Paper 72-53).