Lavafall.
My place where I barricaded myself, there's a block of stone I placed to the left, I mined out the other one so I could get back out at sunrise.
Decided to make it to an outpost. WIP here.
Finished. Umm.. Try to ignore the floating tree there, I removed it after I took the screenshot
Castle, early in its development. There's a tunnel going from under my outpost way over to the castle.