An interactive map of hundreds of water sites across BC: rivers, lakes, dams, hydroelectric generating stations, reservoirs, salmon hatcheries, streamflow gauges, snow survey stations and groundwater observation wells. Each site has a location and a short factual description.
The W.A.C. Bennett Dam on the Peace River impounds Williston Lake, the largest reservoir in the province. Other major dams include Mica and Revelstoke on the Columbia River, the Hugh Keenleyside Dam on the Arrow Lakes, and the Site C dam near Fort St. John, which reached full operation in 2025.
Through three networks on this map: Water Survey of Canada streamflow gauges, BC Snow Survey snow pillows and snow courses that measure mountain snowpack, and the Provincial Groundwater Observation Well Network that tracks aquifer levels. With climate stations, these feed the province's water supply and drought forecasts.
The Fraser River, draining the central interior through the Fraser Canyon to the sea at Vancouver, is the longest river in BC and its greatest salmon river. The Skeena is the second longest.
Sites are compiled from public sources including BC Hydro, the Water Survey of Canada (Environment and Climate Change Canada), the BC Snow Survey and River Forecast Centre, Fisheries and Oceans Canada, and the BC Provincial Groundwater Observation Well Network.
Live readings come from Environment Canada (streamflow), Open-Meteo (weather) and the BC River Forecast Centre (drought). Background notes and photos for some sites are drawn from Wikipedia.
Limitations: coordinates are approximate and some are placed to the nearest community or watershed rather than surveyed exactly. Dates, capacities and descriptions are compiled from general public sources and may contain errors. This map is for reference and education, not navigation or operational decisions.