
Rummaging around in old papers this past week, I came across the yellowing paper of a type-writer-typed paper from 1982. I think I went to Edmonton to present the paper at the 4th Open Pit Operators Conference. I vaguely recall a small city perched on the edge of a river—not at all like the city now that it has spread across vast swaths of open country that was once field and nature. (more…)
