Grindstone Island
44°17′N 76°06′W
Grindstone Island is the fourth largest of the Thousand Islands in the St. Lawrence River and the second largest of the American islands in the St. Lawrence. The island lies near Lake Ontario and is part of the United States. In particular, the island is part of the Town of Clayton in Jefferson County, New York.
44°17′N 76°06′W
Overview
Grindstone Island is the fourth largest of the Thousand Islands in the St. Lawrence River and the second largest of the American islands in the St. Lawrence. The island lies near Lake Ontario and is part of the United States. In particular, the island is part of the Town of Clayton in Jefferson County, New York. The island contains Potters Beach, a private vineyard, summer gift shops, four active beef farms, historic but now abandoned farmlands, and private non-government conservation lands owned by the Thousand Island Land Trust (TILT). New York State's last operating one-room school was on the island and closed in 1989. The current number of year-round households on the island is ten, however the population climbs to 700 people during the summer months.
From Wikipedia, CC BY-SA 4.0
Chart
Nearest islands
- Picton Island3.1 km
- Murray Isle4.5 km
- Wellesley Island7.6 km
- Hill Island14 km
- Howe Island16 km
- Carleton Island19 km
Also in Thousand Islands

Wolfe Island
132 km²▲ 112 m
Major islands

Howe Island
35.7 km²▲ 128 m
Major islands
Wellesley Island
33.1 km²▲ 127 m
Major islands
Simcoe Island
5.7 km²▲ 92 m
Minor islands
Hill Island
5.6 km²▲ 128 m
Minor islands
Carleton Island
5.5 km²▲ 119 m
Minor islands
Grenadier Island
5.2 km²▲ 124 m
Minor islands
Oak Island
1.5 km²▲ 109 m
Minor islands
Also in Seven Isles

Wolfe Island
132 km²▲ 112 m
Minor islands

Howe Island
35.7 km²▲ 128 m
Minor islands
Wellesley Island
33.1 km²▲ 127 m
Minor islands
Hill Island
5.6 km²▲ 128 m
Minor islands
Grenadier Island
5.2 km²▲ 124 m
Minor islands
Tar Island
1 km²▲ 117 m
Minor islands
Picton Island
0.83 km²▲ 114 m
Minor islands
Murray Isle
0.71 km²▲ 111 m
Minor islands