A long time ago, @JPCVx found a set of secret mines. Today, I stumbled across one, and I was actually there without freecam! Mines Treefarm Middle ^Click above
Also, when I showed @drowninpizza (I think) and kyleep12345, they said they had never seen it before until then, so @JPCVx was not first, sorry.
No, just a small bit of land to render. Wouldn't cause lag. I think spawn was downloaded (possibly), we've seen this before, so these mines just may not have been in use. No reason to remove them.
That's great. Thanks for expressing your point. Cookie for you. I never even said I was the first f*ckingg person to find the mines. -.-