Mining equipment along a sheer cliff face, ca.1905

Photograph of mining equipment along a sheer cliff face, ca.1905. At center is a large piece of mining equipment encircled by what appear to be clouds of dust. At the bottom left is a group of people visible from behind walking along a track. Steep rocky cliff walls are visible around the people and mining equipment, while a second piece of equipment is visible on top of the cliff. Hills are visible in the background