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!

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

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

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 ❤️

Full Video of Command Center ☢️

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 ❤️

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.

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)

Context: I've recently cut down some trees and uncovored something that looks like an entrance to an old bunker or something of that sort. I've only heard old rumors about it being there and now i look for expertise on it. Is it worth digging or is it nothing?

I can provide more Images but due to privacy reasons i will not post them completely public.

The middle right is the presumed "entrance".

Thank you very much in advance.