- Fonds2000.1 - Cassiar Asbestos Corporation Ltd. fonds
- Series2000.1.1 - Photographic Material
- Subseries2000.1.1.3 - General & Community Operations
- File2000.1.1.3.09 - Underground mine
- 1 more...
- ItemMinor spalling of reinforced shotcrete
- ItemThick unreinforced shotcrete
- ItemShotcrete slabbed away from wall
- ItemUnderground Mine
- ItemFailed concrete under high lateral stress
- ItemBlowing out dirt from extensometer hole
- ItemDrilling core
- ItemReinforced shotcrete-supported tunnel undergoing closure