A haul truck pulls a load of coal from a pit at the Black Thunder coal mine in the Powder River Basin. (Dustin Bleizeffer) Arch Resources ended its first quarter of 2021 (1Q2021) with a $6 million loss while taking strides to complete its accelerated reclamation plan in the Powder River Basin (PRB), according to a quarterly earnings report released Thursday. While still a loss, the end of 1Q2021 showcased a $19.3 million improvement over the $25.3 million loss reported for the first quarter of the previous year, an accomplishment the coal giant attributes to the expanding availability of the COVID-19 vaccine and a declining rate of infection across its operations, according to the April 22 report.