1921
District 7
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Operation NameNumberTypeOpeningDistrictCityCountyCompany NameRailroad Shipments (tons)Railroad to MineTruck Shipments (tons)Total Production (tons)Days WorkedEmployeesNotes
Avoca CollieryShaft 17Avoca 1LuzerneSuffolk Coal Co.117,129D&H0125,462170450 
Central Colliery7Duryea 1LuzernePennsylvania Coal Co.233,456Erie0263,380264670 
Consolidated Colliery7Avoca 1LuzerneHillside Coal & Iron Co.108,151Erie0125,097278266 
Dennington Washery7 LackawannaDennington Coal Co.0DL&W00  Idle.
Hallstead Colliery7Duryea 1LuzerneGlen Alden Coal Co.172,124DL&W0203,350288354 
Jermyn Colliery7 LackawannaJermyn & Co.48,196DL&W / Erie059,80343878 
Old Forge Colliery7Old Forge Twp. 1LackawannaPennsylvania Coal Co.432,261Erie0481,5702471326 
Pyne CollieryShaft / Slope 17Taylor 1LackawannaGlen Alden Coal Co.468,778DL&W0517,890292790 
Scranton-Taylor Washery7 LackawannaScranton-Taylor Coal Co0DL&W00  Idle.
Taylor Colliery7TaylorLackawannaGlen Alden Coal Co.553,663DL&W0623,385241996 

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