Streamgauges reporting the most discharge on the Castor River
10 Day Trend
Discharge comparison for the highest gauges over the past 10 days
Expected Streamflow Ranges
Streamflow discharge range for this time of year
The Castor River is a river in eastern Ontario, in Canada. It flows into the South Nation River near Casselman. It has a number of branches, including the North, Middle, South and East Castor Rivers which join in Embrun. The river was named for the many beaver dams found in its watershed; "castor" means "beaver" in French.