Deep Run (Patapsco River tributary)

Deep Run is a tributary of the Patapsco River in Maryland, United States. It is located primarily in Howard County, and to a lesser extent in Baltimore County near its mouth.

Deep Run's watershed drains an area characterized by suburban development, agricultural land, and forested areas. The stream flows generally southeast, eventually emptying into the Patapsco River.

Like many urban and suburban streams, Deep Run is subject to the impacts of stormwater runoff, which can lead to increased streamflow during rain events, erosion, and pollution. Efforts are ongoing to improve water quality and habitat within the Deep Run watershed through various conservation and restoration projects. These initiatives often focus on reducing stormwater runoff, restoring stream banks, and promoting responsible land management practices. The stream plays a role in the local ecosystem and provides habitat for a variety of aquatic and terrestrial species.