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(Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mil... (Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mil... (Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mil... (Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mi... (Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mil... Francisco Kjolseth | The Salt Lake Tribune The owners of the Horizon Mine, a shuttered underground coal operation 10 miles ... (Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mil... (Francisco Kjolseth | The Salt Lake Tribune) The owners of the Horizon Mine, a shuttered underground coal operation 10 mil...