Weren't the drilling conditions at Morris Creek pretty tough. Hard to drill in fractured ground with drill stems getting bogged. Also thought the terrain was quite rugged? which would make drill rig access difficult and/expensive.
I think they had a fair crack their originally based on the 'CDU nearology' (whilst CDU still held), but it came to nought. Maybe they'll raise some more funds and have another crack, but look for U not copper...