The SA government website SARIG has a lot of the historical reports and data (Drill holes, assays, geochem, geophysics available).
Only just working out how to access data and got some - most? - of the available drilling data plus magnetics and more accurate AEM locations. Summarised in these images
Same data except of a TMI magnetic base for SA.
Orange stars named prospects.
MLX did drilling at Scarface and the southern most AEM anomaly with limited to no success.
At Scarface one hole hit a narrow zone of Ni mineralisation.
The AEM target was explained by graphite and barren minor sulphides.
Drilling shown includes mineral exploration but extends to calcrete/water and government drilling.
Some Inco/Southwest Mining drilling is available in SA. How much is shown or reported is problematic.
Maps are available for Inco Work at Wingellina but are not available in digital format to include on the above maps. Apparently not all data have survived the 50 years since collection - may not have been reported to the Govt authorities in the first place or lost into company files.
The use of local grids makes location of old data tricky but MLX and Acclaim seem to have been able to make some conversions.
QGIS drilling, grid, pits (green P1-15)
Too much data for much more than a good overview of historical work by an armchair HC geo.
Early days with SARIG where I am still learning.
I would like to find out more about Claude Hills MRE; and how well named prospects have been explored.
