RE: RE: RE: 25 to 50% of ore not recoverableppprecies,
I will do anything to the right tune and if you leave some snacks like cherries, apples and the occasional cake I'll be alright. Just kidding! I don't think room & pillar is as dangerous in this case since we're not creating coal-dust, maybe some silver-uranium dust but I doubt that would explode. Maybe explode the sp one day. $100 a year? C'mon man, their GDP is closer to $1100 so a good job like underground mining could probably pay at least 1.5x that.
URnotU