In this Thursday, Sept. 5, 2019 photo shows the entrance to the Blue Ayr Mine south of Gillett, Wyo. The shutdown of Blackjewel LLC’s Belle Ayr and Eagle Butte mines in Wyoming since July 1,2019, has added yet more uncertainty to the Powder River Basin’s struggling coal economy. (AP Photo/Mead Gruver) RPMG601 RPMG601