Interest was centred on the Whyalla Sandstone - Pandurra Formation stratigraphic contact (the locus of the Gunyah Lake mineral occurrence), and on a quartzite unit developed adjacent to the Woocalla Dolomite Member (the locus of the House and Main...

Drill holes include:. House sheet - ABC grid series, R series (1966, Austminex) - 3-3-XP series (1971-1972, Mount Gunson Mines) - BGC grid series, lines 45 to 305 (1967) and south of Town sheet (1967, Austminex) - MN grid (1967-1968, Austminex). Main...

Plans include drill hole locations and IP traverses, bedrock lithology, structure contours (top of Pandurra Formation, top of Whyalla Sandstone) and a grade control map.