I would do some more research on the cave system to see what type of rocks it is made of. Because if it is sandstone I would not even try.
I would do some more research on the cave system to see what type of rocks it is made of. Because if it is sandstone I would not even try.
We are now ready to start our way down the Great Unknown.We are three quarters of a mile in the depth of the earth.We have an unknown distance yet to run, an unknow river yet to explore.What falls there are, we know not; what rocks beset the channel, we know not; what walls rise over the river, we know not. Ah, well! We may conjecture many things. The men talk as cheerfully as ever; jests are bandied about freely this morning; but to me the cheer is somber and the jests are ghastly. Powell 1869
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