+43, -217? Because Just today I was digging in my own mines and found an awesome cave system that was almost too good to be true. I started obsidian farming in some lava I found, started digging some, and found another cave. Turns out it was too good to be true when I saw some glass and already placed torches.
If this is does belong to anyone, I'd like to make a formal apology for messing with your caves. I'd also would like to ask if we could share it, or would you like me to block of the entrance I made. I won't use it anymore until I get a reply.