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Duluth Minnesota was built over a swamp. In the early 1900's as the city grew the rivers running through the valuable land were routed through tunnels to the lake.
there are several of these tunnels and most are in their original 1900's stone masonry condition
This was the purest darkness I have ever experienced. The complete absence of light was an interesting experience but made photography challenging.
On this trip we started on the lake end of the tunnel, the farther up stream you travel the older and smaller the tunnel gets.
On a steep downhill they used large slabs to make stairs, a hundred years of water flow has drastically carved these away
This is my first post, sorry if I got anything wrong.
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It may just be my shitty phone, but none of your pics are showing up.
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http://imgur.com/a/tEpiu
Here's an imgur album link
Android or IPhone?
[last edit 7/7/2016 1:10 AM by MNExplore - edited 2 times]
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Nice post! Amazing tunnel! Really good shape for the age. Looks like your friend there got drenched, haha. Looking forward to seeing more from you!
BFA '16, PADI DM.
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Ah. I see em now. Cool photos.
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Nice find. Welcome!
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Cool pics, welcome!
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Thanks for sharing the effects of erosion w/ us, and welcome to the board! 
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Looks great! Would love to find that some time...
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Lots of great tunnels in Duluth--the one you posted is an old favorite. BTW, Duluth was not a swamp--you're thinking of Superior.
http://substreet.org/duluth-drains/
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This is a perfect post dude! iv always wanted to see the creeks in Duluth. love the brick work!
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That's a good lookin' tunnel!
"When it rains, just find bigger drains." |
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Posted by Glass
Lots of great tunnels in Duluth--the one you posted is an old favorite. BTW, Duluth was not a swamp--you're thinking of Superior.
http://substreet.org/duluth-drains/
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Wasn't that particular area at one point a marsh or at the very least it was flooded for a good while? If you're still up in Duluth, we should meet up sometime when I'm up in the area.
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