Hey guys, while I have known of the abandoned mines under the western frontier territiories for some time, I only explored some of the one thats further inland before today. I am spelunking the one that is below the station for the area and it's looking like an epic one, or at least huge. It also seems strangely compact or something. I already found one chest with 4 diamonds.
The one I'm in is a separate one than the one inland and I have an entrance established already. As you go up the stairs from the station, there is a side passage leading down which leads to the abandoned mines.
Current location (as in right now) is -1441,25, 1679, under the beach biome.
Whether the two abandoned mines connect or not, I have no idea, but both of them have one feature in common, there is A LOT of water running through them. Way more than any other abandoned mine that I've seen.