Sorry for the late response, have been busy with exams.
I am from New Zealand; the Otago region. The mine we plan to explore is one of the first coal mines in NZ.
I have explored an abandoned gold mine before that was inside a hill, it did not have "tunnels" as such, rather the roof was at an angle and supported by (rotten) wooden beams.
We descended a good way into the earth but then things started to get a bit dodgy so we returned to the surface. (The banks were too steep and there was too much loose rock.)
The mine I want to explore is not of the "inclined" type, I believe. The tunnels apparently run underneath the seabed. We may find that we cannot explore at all, because they are flooded. I am not completely stupid and will not take outrageous risks, and I would not venture way too far into the ground even if I could.
Foolishly against your (Doug's) advice, I still plan on exploring it to some degree. I simply don't have the willpower to stay away!!!
I would like to get one of those Safety Lamps, but I don't know where to bu y them from. Is it possible to make them yourself?
If you feel that it is unethical to give me advice because you feel that you are only encouraging me to get myself into trouble, don't worry - I plan on exploring that mine and there is not a whole lot that is going to stop me other than blatant and obvious safety risks. Any input you have can only be beneficial.
Also someone asked what kind of coal is in the mines. This is what I found on a website. I don't know if it is correct.
Quote:
At Shag Point the coal is of high volatile C bituminous rank, but the rank elsewhere ranges from subbituminous (e.g. Kaitangata lower seams) to lignite (Green Island, higher seams at Kaitangata). The Waihao and Pomahaka coalfields contain lignite and subbituminous coal of Paleocene and Eocene ages respectively
All further comments welcome. Thank you for your responses.
(Also - how much does a decent safety lamp usually cost?)