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Alum Rock is an historic community located in Clarion County, Pennsylvania. It is located at 41.1672840 -79.6211593. Its post office operated until 1944.

Sources

• U.S. Department of the Interior, U.S. Geological Survey, 1:62,500-scale topographic maps
• Foxburg Survey, 1944
• Alum Rock, Pennsylvania, Geographic Names Information System, U.S. Geological Survey.

41°10′02″N79°37′16″W / 41.16722°N 79.62111°W / 41.16722; -79.62111

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