(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.(Trent Nelson  |  The Salt Lake Tribune) The Skyline coal mine on Saturday, June 4, 2022.