big yellow mining trucks working in the limestone open-pit. loading and transportation of minerals in the chalk open-pit

belarus big biggest cast chalk deep deposit development dump dumper engineering environment equipment excavation geology gravel haul heavy hydraulic industrial industry job kolyadichi krasnoselsk landscape large largest limestone loader loading lorry machine machinery mine minerals mining mountain mover open opencast openpit pit professional quarry quarrying river road rock scenery scenic scoop shovel stone stonepit transportation truck trucks vehicle work working yellow