R
Rubicon
Good idea.You might want to place a monument or at least sign above your area so that we know not to start working in that area, and also so it isn't deleted when the next update comes along and the unused portions of the world are deleted so biomes can take effect elsewhere.
There is now a wooden sign, surrounded by four torches, on top of the mountain right next to the shaft that leads to what I've dubbed, Mole Town. It's a straight shot down so bring at least two stone axes or better to get there, and at least 110 blocks of something else to make the climb back up.