Prospective landRegarding the amount of prospective land I guess that depends first of all on what QH believes to be the best land. Given that QH seems mostly focused on the North/north-western Pilbara region, then it might be that he thinks not all Mt Roe cconglomerates are created equal (which I guess we already assumed). After hearing more and more about the potential of Kyleena and Hardey covering gold as well, then the areas that are stacked with some or all of them might be even better than Mt Roe only (MIGHT).
The only way a 75%+ number would be correct (Sprott mentioned that QH said 90%) would be if the Mount Roe to Kyleena stratigraphy located in the north-western Pilbara would be the bulls eye in terms of simply stratigraphy and "basin" location.
I do think a lot of the juniors have only a slice of at least what we ATM consider the main targets. De Grey has a slice of 15km2 + Louden's. DGO has a very small slice, but they might have something under the almost identical aged rock near their Mt Roe discoveries. Novo has at least 20 times the area of Mt Roe-Kyleena than most juniors in the north-western Pilbara.
With that said, Novo is probably downplaying other companies claims (the "90%" comment) and downplaying how extensive the gold bearing land in pilbara might be... That points to not wanting to raise the alarm about others having valuable ground as well. The only real play I have heard QH comment on is De grey's discovery, where Novo owns more than twice as much of the target compared to De Grey.