The PQRT pit is one of the pits in Site Lati which is the largest contributor to PT Berau Coal's coal production which in 2022 will reach 7,856,452 tons. Due to market demand in meeting the needs of coal has become an important matter in the mining business so that the market demand for seam P coal has also increased. Judging from the actual conditions of the PQRT pit, which is on the west side…