River Levels Streamgages Weather

Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Castor River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Castor River, the highest being situated at an altitude of ft, the .

The Castor River is a 51-mile-long river located in southeastern Missouri. It flows through rural farmland and wooded areas before emptying into the St. Francis River. Historically, the river was used for transportation and as a source of power for mills. The river's hydrology is heavily influenced by precipitation, with high water levels occurring in the spring and low levels in the summer. The river is home to a few small reservoirs and dams, including the Sam A. Baker Dam and the Mudlick Hollow Dam. These dams are used for flood control and recreation purposes, including fishing and boating. The river is also used for agricultural purposes, with fields and pastures located along its banks. The Castor River is a popular destination for outdoor enthusiasts looking to enjoy the river's natural beauty and recreational opportunities.

July 19, 2024







Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Castor River At Zalma
USGS 07021000
356 cfs 3.09 ft -19.27

Regional Streamflow


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second

Explore the Interactive Map

View recreational hotspots like fishing, camping, and parks, alongside climate-related data such as river levels, snowpack, and weather forecasts. Enjoy 3D mapping for an immersive experience, and switch to satellite view for a detailed look at your favorite spots. Simply click, explore, and discover nature like never before!

Historical River Levels

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.

5-Day Weather Forecast

16-Day Weather Forecast