Since 1918, the Dome Rock copper occurrences have been worked intermittently from three separate workings by various mining groups and syndicates. Rich oxidised ores have been extracted from the Day shaft and Meehan shaft workings, and primary sulphide ores have been mined from above the 220 foot level in Day shaft. Total recorded production amounts to 126 tons of copper, from dressed ore of approximately 20 percent grade. Copper mineralisation occurs in three small separate lenticular orebodies, and has formed as replacements of particular beds in axial planes of steep pitching folds or on overturned limbs of anticlinal drag folds. The deposits are considered to be of epigenetic origin, and are intimately related to the granites outcropping to the west of the mine. The copper lodes appear to be limited by granite present at depth as well as laterally. Recently dug exploratory trenches have failed to reveal any extensions to the existing lodes. The expected life of the mine is limited to the period required to stope out the 1100 tons of oxidised ore of approximately 11 per cent copper content evident in the Day shaft workings. If precautions are taken during stoping operations to prevent the admixture of waste rock, it should be possible with careful selection to produce saleable ore containing greater than 10 per cent copper.