The Pitt River in British Columbia, Canada is a large tributary of the Fraser River, entering it a few miles upstream from New Westminster and about 25 km ESE of DowntownVancouver. The river, which begins in the Garibaldi Ranges of the Coast Mountains, is in two sections above and below Pitt Lake and flows on a generally southernly course. Pitt Lake and the lower Pitt River it is tidal in nature as the Fraser's mouth is only a few miles downstream from their confluence.