>>995744in AUS we have a lot, almost all are just shafts
danger is primarily in collapses, these things wern't safe when they were made; and you can cause as much disturbance in a mine as a hundred years of nothing
gas is a concern, guys who go into sewers say it's a big issue for them as well
gas can get trapped in pockets, under water, in areas with no airflow
once it's disturbed the "safe" area you passed through might not be safe any more
snakes and spiders always suck, and there are fucking PILES of spiders at the entrances for these
water is SO dangerous underground, fall in and not know which way is up, or be unable to find the place you fell in from and a very small pocket of water can kill you.
one of the scariest things I hear of was that water in mines is often connected with aquifers or other mine shafts and can have a current
there are other issues like fire, caused by gas, dust, coal dust, flammable goods stored in the mine.
a fire starting IN the mine is your worst nightmare, but a fire outside blocking your exit is probably just as bad.
explosives arn't usually left in mines because they are expensive; but sometimes mines are abandoned if nitroglycerine is spilled. I'm not sure if it degrades over time but it certainly becomes ludicrously dangerous.
you might find it in paper vesstles, still packed into rock
don't try and salvage it, that is fully ratarded
in the dark surrounded by sharp bit of metal, fragile wooden beams, 20ft holes in the ground isn't great to begin with
then you have more modern issues, the dumping of hazerdous waste (asbestos, chemicals, heavy metals) in mines is still common.
you might even find a body, drug stash or something else of that nature
you would need a large group I think
if one person breaks their leg it might take three to get them out; plus one person to watch the entrance and raise the alarm.
you don't want one person to fall, a second to fall trying to get them out, and a third unable to help either
