water of the murtle river tumbles over the edge of the partly frozen dawson falls in the cariboo mountains of wells gray

british canada canyon cariboo clearwater columbia current currents danger dawson destination edge erosion fall falls flow flowing forest free frozen geological geology glacial gorge gray ice landscape melt mist mountains murtle nature park partly plateau power powerful provincial reserve river rock runoff scenic sky snow snowpack spectacular spring strong summer tourism travel trees tumbles water waterfall wells whitewater winter