Mr. Hocking,
Drill results over the past four years simply dont support you assertion that PRB mines can not be mined economically - for starters, your reserve figures are wrong - simply looking at the pit-constrained resource, with readily available infrastructure, electricity, able nearby workforce, and the support of a major (AEM), PRB's Borden Lake Mine will have a minelife of 20 years, at 200,000 oz/year.