Flintstone is an unincorporated community and census-designated place (CDP) in Allegany County, Maryland, United States.

Flintstone lies between the southern foot of Tussey Mountain and a water gap in Warrior Mountain formed by Flintstone Creek, a tributary of Town Creek, which flows south to the Potomac River.

Flintstone is located just 1 mile (1.6 km) south of the Mason–Dixon line, the Maryland/Pennsylvania border.

This article about a location in Allegany County, Maryland is a stub.

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