Lockhouse 22

Historical marker location:

Potomac, Maryland

( Marker is on Pennyfield Lock Road, on the right when traveling south.)

Chesapeake and Ohio National Historical Park. National Park Service, U.S. Department of the Interior.

Maryland has a long history of seafood production: Maryland has a long history of seafood production, particularly of blue crabs and oysters. The state's Chesapeake Bay is known for its delicious seafood, and crab cakes and other seafood dishes are popular throughout the region.