The state of Maryland is home to many historic state parks, but not all of them can say they have 15 million years of history. Calvert Cliffs State Park is a coastal gem located on the Chesapeake Bay.

ANNAPOLIS, Md. — Walking the sandy beaches of the Chesapeake Bay and Potomac River in Southern Maryland offers a serene escape for outdoor enthusiasts, with the added thrill of uncovering prehistoric ...