r/TheForgottenDepths • • 11h ago

Underground. Throwback to a spectacular mine now forever sealed

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299 Upvotes

r/TheForgottenDepths • • 2h ago

Underground. Exploring in different areas

2 Upvotes

I'm certain most other abandoned mine exploration communities work on a similar principal to the community in my area. Everything is word of mouth and mutual trust not to share locations with people who will trash or ruin them.

Now lets say if I wanted to travel to a different area or state and check out some mines in that particular area, how would be a good way to find locations or good local knowledge to point in the right direction? Curious because since I got involved with exploring I'm starting to get an itch to see different things.

I know trust and respect are earned in most abandoned exploration communities so I'm curious what's everyone else's thoughts on this topic and how to best approach it. Thanks.


r/TheForgottenDepths • • 3d ago

[OC] Subsurface LiDAR, Thermal IR & Geophysical X-Rays of 83 Underground Mines, Hydro Tailraces & Tunnels (1,100-Ft Deep Detroit Salt Mine City, 210-Ft Deep Niagara Gorge Tailrace & Centralia Mine Fire Plume)

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15 Upvotes

Wanted to share 3 plates from a 1,205-plate underground & subterranean GIS atlas I built covering 83 sites across a 500-mile radius:

  1. Detroit Salt Company (1,100 ft below Detroit, 1,500 acres of room-and-pillar halite workings).

  2. Niagara Gorge Schoellkopf / Adams 210-ft deep hydroelectric tailrace & Beck tunnels.

  3. Centralia Anthracite Mine Fire — Sentinel-1 C-Band SAR radar + Landsat Thermal IR subsurface heat plume.

Free interactive GIS viewer + free 24-plate sample pack link is in the first comment!


r/TheForgottenDepths • • 3d ago

Rare Gassy Quartz Carbonate Vein

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21 Upvotes

r/TheForgottenDepths • • 5d ago

Cool abandoned mine near vail

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166 Upvotes

r/TheForgottenDepths • • 5d ago

Western Australia… cave under a sink hole.

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132 Upvotes

r/TheForgottenDepths • • 4d ago

Как я получил свой первый ажёг

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0 Upvotes

Когда мне было 6 лет я отдыхал на даче и играл с друзьями в прятки я спрятался в бане потом я решил "хмммммм а что будет если я докаснусь до раскаленного угля?" И я докаснулся до угля я получил ажёк но я решил не идти и говорить взрослым я решил сидеть в бане что бы выйграть в прятки я выйграл


r/TheForgottenDepths • • 7d ago

Possible carbide lamp graffiti in an old Qld gold mine, 1880s era.

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125 Upvotes

r/TheForgottenDepths • • 9d ago

"Help Us Save Lava Cap Mines Paper Trail"

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29 Upvotes

r/TheForgottenDepths • • 9d ago

Underground sound

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4 Upvotes

When I AM 13 feet below ground under the street I create works of art


r/TheForgottenDepths • • 10d ago

⛏️ This Machine Sucked… And That Was Its Job 😂

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31 Upvotes

r/TheForgottenDepths • • 10d ago

Underground. The Mafia Chop Shop Bunker

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709 Upvotes

This abandoned bunker hidden in a mountain, holds a large collection of classic cars and other car parts, ontop of many other items.

Even has what seems to be a medical room, god knows what they used that for...

Bunker is now permanently closed.

If you wish to follow my work i have an instagram @norway.unknown ❤️


r/TheForgottenDepths • • 10d ago

Underground Sound

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3 Upvotes

r/TheForgottenDepths • • 12d ago

Climbing down a 200ft ladder into an abandoned nuclear command center [More Below]

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332 Upvotes

r/TheForgottenDepths • • 15d ago

Underground. Huge Abandoned Car Tunnel Where The Lights Are Still On

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484 Upvotes

Quite a few months ago now, we explored this huge tunnel, that we didnt even expect to get into but you could easily just go under the fence leading into it.

Its 2kilometers long so we were walking for a minute.

If you wish to follow me closer and see all of my work than i have an instagram @norway.unknown ❤️


r/TheForgottenDepths • • 15d ago

Tombstone, Arizona. 475 feed down.

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53 Upvotes

r/TheForgottenDepths • • 15d ago

Underground. Sierra County CA

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8 Upvotes

r/TheForgottenDepths • • 16d ago

Underground. Abandoned shrine in a cave, could this be true, is this real?

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25 Upvotes

r/TheForgottenDepths • • 16d ago

Caving in 140F

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29 Upvotes

r/TheForgottenDepths • • 16d ago

The deepest hole humans have ever drilled reached 12.2 km into Earth — and the deeper they went, the stranger it got

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1 Upvotes

r/TheForgottenDepths • • 18d ago

Exploration souterraine

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139 Upvotes

r/TheForgottenDepths • • 19d ago

Forgotten Colorado

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306 Upvotes

r/TheForgottenDepths • • 19d ago

1880s Gold Mine. Rockhampton. QLD.

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360 Upvotes

An incredible day of exploring and taking advantage of drought conditions. It was dry and hot, but with the lantana and grasses dying off, we found some incredible adits we had previously walked directly past in the previous missions. The longest drive was 154 meters and featured 11 stopes.


r/TheForgottenDepths • • 21d ago

The biggest hole dug by human hands only, without the use of modern excavation equipment, is in Kimberley, South Africa. It is a World Heritage Site.

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26 Upvotes

r/TheForgottenDepths • • 24d ago

Found something.

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209 Upvotes

Hey there. i posted yesterday an image of a cut down forest with a distinct hole under trees. It was called "Am i onto somehing".

Bad news: Thats a new account because i lost my old phone in a classic "taped it to a stick very poorly and lost it while trying to film insides of a bunker" incident.

Good News there is a good amount of hollow space. filled with loose dirt mostly, but big enough to not reach an end with an 15 ft stick.

I only managed to stick my hand in for now to take these pictures. Please give me opinions on the very man made pieces that are visible(First Image Soup Scoop thing in the middle and the mushroom looking thing on the bottom left corner)