imo, YT is way off the mark
i already posted but YT objected
currently, the area is 100 metres long over two sections, x 20 metres wide x say 35 metres deep to be generous.
To be generous again, grade is say 1% average.
1 tonne = 1 cubic metre
Ore tonnage is 70,000 tonnes.
At 1% grade = 700 tonnes of uranium
Multiply by density factor of 2.65 = 1,855 of uranium.
Recover of 90% = 1,670 tonnes of uranium.
Pounds = 3.7m