Grindstone Island Upper Schoolhouse

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

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″N 76°07′45″W
Area	Less than 1 acre (0.40 ha)
Built	1885 (1885)
NRHP reference No.	12000509[1]
Added to NRHP	August 14, 2012

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

References

1. "National Register of Historic Places". Weekly List of Actions Taken on Properties: 8/13/12 through 8/17/12. National Park Service. 2012-08-24.
2. "Cultural Resource Information System (CRIS)". New York State Office of Parks, Recreation and Historic Preservation. Archived from the original (Searchable database) on 2019-04-04. Retrieved 2015-11-01. Note: This includes Travis Bowman (May 2012). "National Register of Historic Places Registration Form: Grindstone Island Upper Schoolhouse" (PDF). Retrieved 2015-11-01. and Accompanying photographs