National Register of Historic Places National Register of Historic Places
1803
Purchase of Louisiana Territory from France doubles U.S. land area.
Listings by StateHistoric DistrictsVacant / Not In Use

MARYLAND - Calvert County - Historic Districts

Patterson's Archeological District
(added 1982 - Calvert County - #82002808)
Also known as St. Leonard's Plantation;St. Leonard's;Long Point;Patterson'
Address Restricted , Wallville
(5127 acres, 31 structures)
Historic Significance: Information Potential
Area of Significance: Historic - Non-Aboriginal, Prehistoric, Historic - Aboriginal
Cultural Affiliation: Archaic, Woodland, et al.
Period of Significance: 7000-8999 BC, 5000-6999 BC, 3000-4999 BC, 1825-1849, 1800-1824, 1750-1799, 1749-1500 AD, 1499-1000 AD, 1000-2999 BC, 1000 AD-999 BC
Owner: Private
Historic Function: Defense, Domestic
Historic Sub-function: Camp, Fortification, Single Dwelling, Village Site
Current Function: Agriculture/Subsistence, Landscape
Current Sub-function: Agricultural Outbuildings, Unoccupied Land




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