excavator works on the construction of the railway in the forest. yellow excavator pours the gravel between the sleepers

aerial blue building cleaning construction copter day deforestation digger environment evening excavator facility forest gopro gravel green horizon industrial industry lopatinsky machine machinery nature nobody old outdoor pit plants pours quadrocopter rail railway resource road run sand sandpit season sky sleepers summer sunlight sunset supply trail tree vehicle view voskresensk wood work works yellow zone