Grindstone Island Upper Schoolhouse

Grindstone Island Upper Schoolhouse
U.S. National Register of Historic Places
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Location	41591 Cross Island Rd., on Grindstone Island, Clayton, New York
Coordinates	44°16′12″N76°07′45″W / 44.27000°N 76.12917°W / 44.27000; -76.12917
Area	Less than 1 acre (0.40 ha)
Built	1885 (1885)
NRHP reference No.	12000509 [1]
Added to NRHP	August 14, 2012

Grindstone Island Upper Schoolhouse is a historic one-room school building located on Grindstone Island, Clayton, Jefferson County, New York. It was built in 1885, and is a 1 1/2-story, three bay by one bay, frame building on a granite foundation. The building includes a vestibule and small teachers apartment. Also on the property is a contributing well pump. It operated until 1989, making it the last one-room school in operation in New York State. ^{[2] : 5–6}

It was added to the National Register of Historic Places in 2012. ^[1]

References

1. "National Register of Historic Places" (PDF). Weekly List of Actions Taken on Properties: 8/13/12 through 8/17/12. National Park Service. August 24, 2012.
2. Travis Bowman (May 2012). National Register of Historic Places Registration: New York SP Grindstone Island Upper Schoolhouse. National Archives and Records Administration. Retrieved November 1, 2025. (Downloading may be slow.)