) |
| | |
| | |
Narrowed twin tunnel | C |Intermediate shaft. |
| | (East of shaft.) |
| | |
| | |
| | |
| | |
Full-sized twin tunnel |C and D |Intermediate shaft. |
| | (West of shaft.) |
| | |
Exploration drift |C and D |Intermediate shaft. |
| | (West of shaft.) |
| | |
Twin tunnel. Enlargement }|C and D |{ Eastward from |
of exploration drift }| |{ open cut. |
| | |
Twin tunnel. Enlargement }|C and D |{ Eastward from |
of exploration drift }| |{ open cut. |
| | |
=============================+========+=====================
==================================+========+============+=============
4 | 5 | 6 | 7 |
----------------------------------+--------+------------+------------+
| | Length | Average |
DATES.
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