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Sigma

1. Sigma, Alabama, United States [Place] is in Houston County; location is 31°16'55"N 85°11'50"W; elevation is 231 feet [SourceGSP]
2. Sigma, Michigan, United States [Place] is in Kalkaska County; location is 44°40'12"N 85°3'12"W; elevation is 1,141 feet [SourceGSP]
3. Sigma, Virginia, United States [Place] is in Lee County; location is 36°49'48"N 82°56'12"W [SourceGSP]
4. Sigma, Virginia, United States [Place] is in Virginia Beach City; location is 36°43'54"N 75°59'11"W [SourceGSP]