About

Sister Island Shoal lies within the picturesque Thousand Islands region, a renowned area straddling the Canada-US border. This shoal is situated just inside the International Boundary, nestled to the west of Sister Island and to the east of Grenadier Island, which belongs to Canada. Its location within the two-minute box of 44^22′ x 75^50′ places it in close proximity to the international demarcation line, adding to its geographical significance.

Falling under the jurisdiction of the town of Hammond, Sister Island Shoal is part of St. Lawrence County in New York State. This area is known for its natural beauty and historical intrigue, making it a point of interest for those exploring the Thousand Islands. Despite its modest size, the shoal contributes to the complex mosaic of islands and waterways that characterize this region, offering a subtle yet integral feature to the landscape.

Island or Feature Name
Sister Island Shoal

Nationality
US

Centroid Lat/Long

Two-Minute Box
44^22′ x 75^50′

Location and description
Just inside International Boundary, west of Sister Island, east of Grenadier Island (Canada)

Former, informal, or alternate names

Municipality
Hammond

County
St. Lawrence

Province / State
NY

Ports?

Book refs

1000islands.co ID #
1095

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Data source.