Jefferson Patterson Park & Museum

560 scenic acres along the Patuxent River in Calvert County, Maryland. More than 70 identified archaeological sites. 9,000 years of documented human occupation Jefferson Patterson Park & Museum (JPPM) is a place full of secrets waiting to be unearthed.  Whether you come to hike our miles of trails, explore our Visitor Center full of interactive exhibits, or to enjoy one of our educational programs or events, you will leave with a greater appreciation for the land and the people who once lived here. JPPM is also the home of the Maryland Archaeological Conservation Laboratory (MAC Lab), which houses over 8 million artifacts.