64K pounds Uranium per square meter in 44b!!!A vertical hole (with the seize of one square meter) and a depth of 56.5 meter and a mineralization of 11.55% Uranium would contain around 64000 pounds of Uranium.
To get 100 Mio pounds you would need an area of 39m * 39m.
For 200 Mio the area would be the size of 56 m * 56 m.
Keep your fingers crossed that the mineralization of 44b continues.
(calculations without guarantee)