About

Mary Island rests within the Thousand Islands region along the US-Canada border, specifically anchoring the waters around Wellesley Island in the St. Lawrence River. This island is part of the Manhattan Group, which forms a peninsula at the foot of Wellesley Island. Known for its scenic views and unique location, Mary Island is positioned in an area celebrated for its natural beauty and recreational opportunities.

Falling under the jurisdiction of the municipality of Alexandria in Jefferson County, New York, Mary Island is an integral component of this picturesque region. The island’s geographical coordinates place it at a latitude of 44°21’55” N and a longitude of 75°55’17” W, nestled within the two-minute box coordinates of 44°22′ x 75°54′. This precise positioning offers a glimpse into the island’s setting amidst the sprawling waterways and lush landscapes that characterize the Thousand Islands area.

Island or Feature Name
Mary Island

Nationality
US

Centroid Lat/Long
442155N 0755517W

Two-Minute Box
44^22′ x 75^54′

Location and description
In or near The Manhattan Group, a peninsula comprising the foot of Wellesley Island

Former, informal, or alternate names

Municipality
Alexandria

County
Jefferson

Province / State
NY

Ports?

Book refs

1000islands.co ID #
770

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Data source.