Actually, several of the caves (and probably some of the mines) are misrepresented. The bottoms of very few deep caves are as far below the surface directly above as their depth indicates, because caves don't go straight down and the surface also goes up and down. Many deep caves have entrances high on a mountain side and passages that run downslope. Kazumura is an extreme example, but other deep caves like Huautla and Cheve are similar. The surface above the deep point is often hundreds of meters lower than at the entrance. One example I know of that really is as far below the surface as its depth indicates is Ocotempa in Mexico. It is over 1000 m deep and goes down like a corkscrew. The bottom is only 50 m offset from the entrance, although the passage does wander farther away partway down before turning back at the end.
A related question is how deep you are in a cave whose entrance is at the bottom of a cliff. As soon as you go inside, the surface is way above, even if the cave is horizontal. Of course, cave depth below the surface isn't as meaningful as how far you have to travel to get to the bottom. That's where all the work is. Mark Minton On Sat, Feb 12, 2022 at 5:40 PM John Lyles <j...@losalamos.com> wrote: > Its a cool animated video. Even up to date. Kazumura Cave is the only > misrepresentation, as the cave is actually not so deep underground, but > goes a long distance down flow down the mountain. > > jtml > On 2/12/22 3:21 PM, 'Mary Thiesse' via Pajarito Grotto wrote: > > Lee Skinner shared this earlier and I thought I would pass it on to > Pajarito grotto as well. Interesting depth comparisons. > > Mary > > Sent from Yahoo Mail for iPhone > <https://overview.mail.yahoo.com/?.src=iOS> > > Begin forwarded message: > > On Saturday, February 12, 2022, 11:45 AM, Lee H. Skinner > <skin...@thuntek.net> <skin...@thuntek.net> wrote: > > An interesting video about underground places -- lots of caves mentioned. > > https://www.youtube.com/watch?v=WRBYk2FO5QE > > Lee > >
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