excavation lake with big pile of sand and gravel after dig up, rural idyll on a quarry pond in bavaria

excavation lake big pile sand gravel dig rural idyll quarry pond bavaria business mining dirt bird blue industry background construction equipment borrow earthmover bulldozer company mine belt bottom bucket conveyor development digger excavator extraction floating floats grit heavy hydraulic industrial material germany pit area design hill building forest landscape dekker lakescaping dredge elst kamp heap