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Circle Coal Co.
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YearOperation NameNumberTypeOpeningDistrictCityCountyCompany NameRailroad Shipments (tons)Railroad to MineTruck Shipments (tons)Total Production (tons)Days WorkedEmployeesNotes
1957 Circle Mine2Mayfield 1LackawannaCircle Coal Co.2711,6963,3922218Coal prepared at Ace Breaker.
1958 Circle Mine2Mayfield 1LackawannaCircle Coal Co.5768512,046525136Coal prepared at Ace Breaker.
1959 Keystone MineSlope2Mayfield 1LackawannaCircle Coal Co.1847921,6261456Coal prepared at Ace Breaker.
1960 Keystone MineSlope2Mayfield 1LackawannaCircle Coal Co.3771761,257856Ceased operation in July. Coal prepared at Ace Breaker.

Note 1: Added, does not appear in the mine inspection report.