Aerial of Thornton Illinois Quarry

fresh limestone heavy machinery hauling heavy duty dump truck haul truck quarry limestone mining excavation industrial geology rock formation open pit extraction construction materials aggregate stone thornton illinois landscape heavy machinery erosion stratification sedimentary rock quarrying earthmoving natural resources industry environmental impact land use topography terrain cliff face bedrock mineral extraction crushed stone raw materials infrastructure economic geology drone shot terraces rock layers quarry operations construction industry largescale mining geological features manmade landscape resource extraction environmental management sustainable mining