So far as of, August 16, 2010. No their aren't any cheats for this game.... :(
rztr
You have to dig down to about 400-600 deep area, that is where the 1basalt is. :)
Its called obsidion you start with two
I did some research and found out that they can dig upto 12 inches deep not sure if they can dig deeper
gold miner and dig-in some gold.
Dig Yourself Deep was created on 2007-10-15.
They dig up to 4-16 inches deep, it depends really.
yes theres one deep within turn back
150
Go to the mission list (press1) and turn on the compass, follow this to the trapped miner (he's not in the mine!) then use the pick (a) to dig him out
1,000,00 feet deep
They wont dig very deep, but they can burrow underneath and escape if the fence isn't deep enough into the ground.