History
No. 4 Mine was a slope mine, meaning its entrance was an inclined tunnel. No. 5 and No. 6 were shaft mines, they were accessed by vertical shafts.
Description
This diagram shows a slope (tunnel following the coal seam at an angle) a shaft (vertical tunnel dug to reach the coal seam) and a drift (horizontal tunnel dug to reach the coal seam).
Item Details
- Materials: Graphic material
- Archival Reference: 984.088.067
- Other reference: C160-119S / S160-157
- Author: [unknown]
- Donor: [unknown]
- Donated: 1984