Maryland is a unique area in that we have a number of different resources so close together. Making this situation even more complex is the fact that those areas intertwine, and it is the responsibility of the Department of Natural Resources to effectively manage Maryland's bays and streams that lie within and tie into our watershed. This content area is divided into four sections: streams, the Chesapeake Bay, the Coastal Bays and watershed information.
“For Marylanders, the Bay is not merely something we drive over on our way to the ocean. The Bay is alive in the creeks, streams and rivers that run through our neighborhoods and our open spaces. The Bay puts crabs and oysters on our tables and brings tourism dollars into our State’s economy. All Maryland families — even those who do not live within the watershed — benefit from what the Chesapeake brings to our great State.” - Governor Martin O’Malley
Eyes on the Bay
DNR performs continuous monitoring at many locations throughout the Chesapeake Bay and its tributaries. Get real time information for your area.
Growing Oysters
The Marylanders Grow Oysters Program links private pier owners with oyster reef restoration. Oysters are grown, then placed on protected reefs.
Tributary Teams Legacy
DNR honors the Legacy of Maryland's Tributary Teams. Though program funding ended many teams continue their important work,
Stream Waders
DNR thanks all our great volunteers working to help us gather data about the rivers and streams of the State. Get involved with the Maryland Stream Waders!
How Big is the Bay?
The Chesapeake Bay is about 200 miles long. At the Bay Bridge near Annapolis, it is only 4 miles across, but it is 30 miles across at the widest point near the mouth of the Potomac River.
Chesapeake Bay Hotline
Call 1-877-224-7229
to report any of the following- Boating accident or reckless activity
- Fish kill or algal bloom
- Floating debris that poses a hazard to navigation
- Illegal fishing activity
- Public sewer leak or overflow
- Oil or hazardous material spill
- Critical area or wetlands violation
- Suspicious or unusual activity