RE:RE:RE:RE:Time lines.....I have worked in underground potash before most recently at PCS Cory. It would be virtually impossible to follow the seams as described here as there are always what geologists call "anomalies". Basically ground disturbances where the potash grade seam completely disappears and you don't know whether to continue cutting above or below current grade to find the seam again. This is the way the ore body is around Saskatoon. The further south seems to have better results as shown with Rocanville.