Rock Run Mill

Historical marker location:

Port Deposit, Maryland

( Marker is at the intersection of Main Street (Maryland Route 222) and Granite Avenue, on the right when traveling north on Main Street.)

Built circa 1725.

Maryland was once the site of a major Civil Rights protest: In 1963, civil rights activists organized the March on Washington for Jobs and Freedom, which drew more than 250,000 people to the National Mall in Washington D.C. Many of the participants in the march were from Maryland, and the state played a crucial role in the civil rights movement.