Petersburg (formerly Brittain Store) is an unincorporated community in Burke County, North Carolina, United States. It lies at an elevation of 1168 feet (356 m) at coordinates: 35° 42' 23.47" N, 81° 40' 15.35" W.[1] It is part of the Hickory–Lenoir–Morganton Metropolitan Statistical Area. 35°42′23″N 81°40′15″W / 35.70639°N 81.67083°W
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