Jug Hole - Source Tunnel

[DeepSea]

CONGRATS to Jeff Marchand, Michael Gibby, Rick Hornung and Kurt Lohrman for their impressive exploration and survey of Jug Spring's Source Tunnel.

Take a look at the the best map I have seen in a while - http://bit.ly/crEdW2

[SuPrBuGmAn]

Very nicely done! Great looking map.

[Tegg]

Good job guys...

Sometimes you "just have to go see for yourself"...

[JahJahwarrior]

Rick and Kurt are masters of drawing! I saw that after they sent me a rough sketch, and it looked better than my carefully drawn version! After that, I gave up on improving my map and just gave them high res versions of mine along with my survey data. Marchand relined the source tunnel (only the left hand side, some of the Wonderland tunnel is still twisted #18) without any help, and did a beautiful job of it.


The Rock Sandwhich restriction starts out very small. Some have called it no mount. Whatever you choose to do it in, divers should be aware that this is not a "simple" dive and isn't the sort of thing you want to tackle without being fully aware of the physical and psychological impacts of super-tight-squeeze-between-rocks diving. If that isn't your thing, then don't try this tunnel. If you think Diamond Sands is a difficult restriction, don't try this tunnel. The good news is, the smallest restriction is right up by the front, so you can quickly decide if the tunnel is for you or not.

[fixxervi6]

I'll echo what he is saying about it being tight there, I can't get into it without gear removal but I'm 200+ lbs and have to turn my head sideways. I've heard people call diamond sands major and even heard people refer to it as no mount, diamond sands is like open tunnel compared to that first restriction, its wide but really really low, like a sandwich

Word of caution, if you go past the rocky restriction past the boulder and over the clay mound down the wonder tunnel, be prepared to navigate serious restrictions in 0 visibility on the way back out, you'll see it on the way in you'll be feeling it on the way out.