They could always make something with a multipurpose use such as a "recycling compactor". Uses burnable fuel to compact tailings, dirt, and sand into a compacted version at a rate of 10:1, with the compact version actice like a normal resource (ex. Stone) so it can be stored in stacks of 20, though still in a stockpile/cart/etc. . This would cut down on the needed space significantly for these items respectively. The compactor could be available around the same time as the blast furnace.
Posts made by goolsby7
RE: To Much Tailing