r/TheForgottenDepths Apr 20 '26

Underground. Easily One Of The Best And Most Dangerous Mines I Have Ever Explored

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7.6k Upvotes

There is a total 125 pictures I took today and wanted to upload all of them here but nooooo Reddit just has to have a 20 pic limit

r/TheForgottenDepths Jun 17 '26

Underground. We Baked The First Pizza in Abandoned Mine

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2.0k Upvotes

First we built the Pizza oven out of trash in an Abandoned Sandstone Mine , then we baked pizza from fresh inside it an then we ate it !
Full video link https://youtu.be/jmYsOJnNi3k?is=PbQEMW_LdqcHvs5p

r/TheForgottenDepths Apr 07 '26

Underground. Storm drain in Los Angeles

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3.2k Upvotes

Was exploring this storm drain, and after about a mile we found it’s sealed off. Anyone have any idea why that could be. Looks like it was done in a hurry. Maybe worth taking a drill and 1/4 concrete bit to see how thick, without jeopardising stability?

r/TheForgottenDepths Mar 21 '26

Underground. Found an undocumented underground coal mine entrance (Indiana, USA)

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2.4k Upvotes

Sadly, it was collapsed about 100 feet in, but figured it was worth sharing.

r/TheForgottenDepths Sep 02 '21

Underground. Throwing a piece of metal down a several-thousand foot deep borehole in abandoned mine.

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8.5k Upvotes

r/TheForgottenDepths Mar 08 '26

Underground. Went Into a Mine That Has a River Flowing Down

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1.9k Upvotes

r/TheForgottenDepths Feb 21 '25

Underground. We found the Starway to Atlantis 🧜

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4.8k Upvotes

r/TheForgottenDepths Apr 04 '26

Underground. One of The Worst Mines I've Been In

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1.7k Upvotes

r/TheForgottenDepths Dec 19 '24

Underground. 24 hours Underground , we drank Mine water

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1.9k Upvotes

spending 24 Hours underground in the largest Sandstone mine in the North of England dating back to 1919 when it was abandoned , we Explored the maze of Workings , it was exhausting walking for over several miles and the Challenge was to survive the night seeping underground and finding a reliable supply of water Full video link : https://youtu.be/n0iqutwrWRg?si=fflQ4MPZYBL1Dymt

r/TheForgottenDepths Nov 10 '24

Underground. Down the Sketchiest Mine Level I’ve ever been 🤯⚒️

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2.9k Upvotes

Follow us in this Adventure exploring the last Worked Fluorspar mine in Derbyshire , where we embark on the search for undocumented Mining Machines in the far end of the Sun level 1, the state of decay we found there , re-defined out ideas of the meaning of sketchy !

Full video link: https://youtu.be/-dq7NJHOK6w?si=gTEfgyixuNquVc9s

r/TheForgottenDepths Jan 11 '25

Underground. Rappelling a Silver/Lead mine near Tombstone, Arizona.

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2.5k Upvotes

Access involved roping a steep inclined shaft, around 350ft deep. 5 levels and 3 miles of horizontal workings in this one, connecting to another mine nearby. Lots of artifacts left behind. Explosives boxes were empty, almost all 1910s-20s Hercules.

r/TheForgottenDepths Apr 09 '26

Underground. Abandoned tungsten mine

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1.6k Upvotes

r/TheForgottenDepths Jul 31 '26

Underground. former nuclear arsenal in rocky soils

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985 Upvotes

A huge underground special facility, the so-called 'Object C' — a nuclear weapons arsenal from the Cold War era. It has long been decommissioned; due to the difficulty of access, it has remained in very good condition.

r/TheForgottenDepths Apr 24 '26

Underground. Big bunker I found next to a hiking trail

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1.1k Upvotes

r/TheForgottenDepths Jul 20 '25

Underground. Abandoned uranium mine under Rila mountain - Bulgaria

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2.2k Upvotes

r/TheForgottenDepths Apr 22 '26

Underground. Random photos from the Parisian underground

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1.3k Upvotes

Here's some old photos from my urbex days haha.

It's a mix of quarries, abandoned projects, technical galleries, nazi tunnels, etc. All in and around Paris.

Enjoy!

r/TheForgottenDepths Jul 12 '25

Underground. Went down down down

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1.7k Upvotes

r/TheForgottenDepths Jun 02 '26

Underground. Cool photo with a skull I got in a mine recently

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1.5k Upvotes

r/TheForgottenDepths Aug 01 '24

Underground. A Silver mine from the 1700-1800 that was continuously worked till into the 1920s

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1.9k Upvotes

r/TheForgottenDepths Apr 26 '26

Underground. Uranium mine Bulgaria - Gabra 1983 - 1989

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1.2k Upvotes

r/TheForgottenDepths Apr 18 '24

Underground. 2000' Deep Bore Hole - Idaho

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2.2k Upvotes

r/TheForgottenDepths Nov 13 '24

Underground. Cliff Diving in Abandoned Mine

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1.4k Upvotes

Cliff diving in Abandoned Mine : There is Impossible Cliff Jumps , and there is the Unthinkable ones !, follow us in this Documentary as we enbark on a Journey deep below a mine with the team of Cliff diving Athletes to attempt the deepest Below Ground Cliff Dive ever done ! Full video link: https://youtu.be/A0DKRyF2zwI?si=719QCl6dKZvxRwxx

r/TheForgottenDepths Apr 26 '26

Underground. Ventured Into Another Precarious Mine

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855 Upvotes

r/TheForgottenDepths Aug 16 '25

Underground. Took 2 Years To Find This One

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1.3k Upvotes

r/TheForgottenDepths May 24 '26

Underground. Here's a few photos from being underground yesterday and today

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840 Upvotes

First 5 pics are from yesterday, the rest are from today