Abandoned Railway

An Abandoned Railway is a long and wide underground structure that goes in a straight line. There are sets of minecart tracks scattered around scarcely and giant gaps and scars through it. They would abruptly stop at a wall or at a cut off end. Abandoned Railways would be full of mushrooms, vines and a few lanterns as well as a variety of weathered copper blocks. There would also be platforms on the sides with barrels that could contain stone/iron tools along with TNT.

Not only does this add more exciting underground structures but it also provides players with already weathered copper and an explanation for the train whistle cave sounds.