This file contains various aspects of the underground mine.
- Photos depicting damage to the underground mine such as fallen rocks, cracked shotcrete, twisted rock bolts and metal mesh, exposed and damaged steel structural frames, and repairs underway.
- Steel cables, chains, support arches, and custom welded rebar frames used in the structural reinforcement of the underground mine.
- Several engineering tests related to the structural damages are depicted.
- Two sets of images show a Porta Power hydraulic tool with a ready rod attached, a hand pump, as well as images of a technician testing the holding power of a rock bolt.
- Set of images documents a technician drilling cores and installing extensometer anchors, as well as grouting the anchors and connecting an extensometer. Technicians are shown inspecting damages with a ruler and rockhammer for scale.
- A set of images showcase the threaded rebar, nuts, and face plates used for rockbolts.
- Utility vehicles, yellow vent ducting, and utility pipes are visible in several images.
- Also include is an image of a man in office space, foggy night scene with a telephone pole, office desk, stack of supplies including concrete, steel cable, and spray paint, and several images of a broken piece of ore and concrete outside the mine portal.
- Several images depict miners working in the bucket of a scoop tram.
- Photos of the stramler feeder breakers, which was used in the underground mine.
- Images of ground support verifications where the deficiency of the exhaust ramp was investigated. This collection has various annotations explaining the broken shotcrete and the wire mesh installed.
- A collection of photographs depicting tunnel shotcrete failures. Each photograph has an accompanied textual annotation.
- Photos of MMD #750 Sizer equipment - assumed used in Underground Mine.
- Photos of pump used in 1335 level, wheel fan for ventilation removed from 1350 level,
- A collection of ground fall event 29 March 1989 - with annotations depicting damage