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Grindstone

1. Grindstone, Maine, United States [Place] is in Aroostook County; location is 46°34'34"N 68°5'17"W [SourceGSP]
2. Grindstone, Maine, United States [Place] is in Penobscot County; location is 45°44'10"N 68°35'14"W [SourceGSP]
3. Grindstone, New York, United States [Place] is in Jefferson County; location is 44°17'0"N 76°8'35"W; elevation is 291 feet; was named in year 1950 [SourceGSP]
4. Grindstone, Pennsylvania, United States [Place] is in Fayette County; location is 40°0'58"N 79°49'51"W [SourceGSP]
5. Grindstone, Pennsylvania, United States Postal Service Zip Code is 15442 [SourcePSZ]
6. Grindstone, South Dakota, United States [Place] is in Haakon County; location is 44°8'21"N 101°58'1"W [SourceGSP]