News Article regarding Drilling at Zoro 1 https://rockstone-research.com/index.php/en/research-reports/2813-Drills-Back-in-Action-at-the-Zoro-Lithium-Property-in-Manitoba
Most significant take away from the whole article:
"In 1956/1957, when lithium prices and demand were very low, a total of 78 shallow holes were drilled at Zoro by Green Bay Uranium Ltd., identifying 7 pegmatites. About 60% of these holes were drilled into Dyke 1, delineating a (historical) “reserve estimate” of 1.8 million t averaging 1.4 Li2O. Historic drilling was shallow to only test for near-surface mineralization, however it was noted that the pegmatites thicken at depth and remain largely untested below 200 m from surface."