Jefferson Patterson Park and Museum

10515 Mackall Road; St. Leonard, MD 20685
(410) 586-8538

About Jefferson Patterson Park and Museum

560 scenic acres along the Patuxent River in Calvert County, Maryland, more than 65 identified archaeological sites, an​d 9,000 years of documented human occupation.

JPPM preserves and shares the diverse human stories found on Maryland’s landscape and in its archaeological resources. We seek to inspire current and future generations to value and understand the stories of the people influenced by, and who continue to impact, our changing landscape.

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Contact Information

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Location & Map

Hours of Operation

Grounds open daily, sunrise to sunset.
Visitor Center and other public buildings open April-November, Wednesday-Sunday, 9:30am – 4:00pm

For our regular hours of operation through the year, please visit our website!