Sister Island Shoal
About
Sister Island Shoal is a shoal just inside the International Boundary, west of Sister Island and east of Grenadier Island (Canada), in the Town of Hammond, St. Lawrence County, New York.
Facts
| Location | Town of Hammond, St. Lawrence County, New York, United States |
|---|---|
| Where | Just inside International Boundary, west of Sister Island, east of Grenadier Island (Canada) |