The Barbara (Lot 817) is underlain by granodiorite of the Greenwood Pluton and greenstone of the Upper Paleozoic Knob Hill Group. A quartz vein, striking north-south, dipping 50 degrees east and varying in width from 2.5 to 60 centimetres, carries spotty galena, chalcopyrite, sphalerite and pyrite associated with gold and silver values. A composite sample yielded 0.69 grams per tonne gold, 54.86 grams per tonne silver, 0.23 per cent copper, 3 per cent lead and 1.6 per cent zinc (Minister of Mines Annual Report 1922, page 174).

The Barbara was Crown-granted to George Rendell in 1899. Some work was done in 1903 and/or 1904. Some gold and silver-bearing ore was shipped in 1906. In 1913 a tunnel being driven to intersect the Barbara and Starveout was in 274 metres but had not intersected the veins. It was thought that faulting had offset the veins. In 1922 a 12 metre shaft was sunk at 47 degrees when a fault was encountered. The drag of the fault was followed for 15 metres east at a 2 degree incline where the vein, dipping 44 degrees east, was encountered. More faulting was reported as the shaft was sunk a further 43 metres. At the bottom of the shaft a drift was run on the vein north for 16 metres. For about 3 metres from the shaft, the vein was about 50 centimetres wide and well mineralized. After this, for 10 metres, the vein varied from 15 to 60 centimetres in width but was generally barren. A crosscut was driven from the first point of faulting in a northeast direction and some ore was shipped. This crosscut was eventually filled with waste.