Results of 10m at 2.47% nickel and 1.06% copper establish further continuity of high-grade mineralisation at the Investigators prospect, according to St George.
Attention has now turned to two conductive anomalies identified in the northern section of Investigators that're "favourably located for potential additional extensions of known high-grade nickel-copper sulphides".
St George is also planning to drill test new conductors recently identified in the region west of Leonora.
St George has been exploring Mt Alexander for much of its publicly listed life since its IPO in November 2010.
It has a 75% interest in the ground, with Western Areas having the balance.
St George had A$6.5 million cash and "committed cash facilities" at the start of the current quarter.
Shares in St George were up 8% to 13c in afternoon trade, capitalising the company at $39 million.