Why are the state boundary lines along the Potomac River so irregular? Why doesn’t the line run neatly down the middle of the river, as it does in many other states? Join ICPRB to learn about the fascinating story behind the Potomac’s peculiar borders involves colonial land grants, centuries-old legal disputes, and evolving interpretations of land and water rights.

The Interstate Commission on the Potomac River Basin is celebrating 85 years of protecting and preserving the Potomac River watershed. Much has happened since ICPRB was authorized by Congress in 1940, so please join us for this webinar series highlighting the past, present, and future of our nation’s river.