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

The Back River, located in Maryland, is a 38-mile long river that flows into the Chesapeake Bay. Historically, the river served as a major transportation route for goods such as lumber, fish, and tobacco. Today, it is an important source of drinking water for Baltimore City and surrounding areas. The river's hydrology is impacted by several reservoirs and dams, including the Loch Raven Reservoir and the Prettyboy Reservoir. These structures were constructed in the early 20th century to provide a reliable water supply to Baltimore City. The Back River also supports a variety of recreational activities such as fishing, boating, and birdwatching. Additionally, the surrounding agricultural land is used for farming and livestock production.