drilling

Underground, miners and equipment at Oroya drilling.

Two men underground Great Boulder Gold Mine, drilling.

Kalgoorlie Public School, Dugan Street. 'Boys at Drill' Stone school building with large group of boys drilling with long sticks, one teacher present. Brick building in background.

three men underground with rock bolting or drilling machine.

geoff Donegan with Dondrill 100 a drilling rig he has designed.