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About
ⓘ Some details here were drafted automatically and haven't been verified yet — double-check fees and hours with the managing agency before you go.
LocationAlexandria Bay NY
SizeSmall — a few hours or less
Acres13 acres
Mary Island State Park is a 13-acre (5.3 ha) state park located in the St. Lawrence River in Jefferson County, New York. The park is situated in the Town of Alexandria on the east end of Wellesley Island, and is accessible only by boat.
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