u/KeySupermarket634

I want to make a mine-to-ore processing plant section on an On30 layout using the "loads-in, empties-out" concept using two identical trains, one with loaded cars and the other with empties. I'm having a difficult time designing a way to hide the trains between the two start/end points. It's a rather small layout space and the trains are a bit long. I've considered making the mine entrance simply a tunnel going into a mountain and the plant a long covered "shed" long enough to accommodate the entire train, but I'm not sure if either of those would be very prototypical. Any ideas?