I feel there's more to the richat though, humans occupy volcanic spots all the time, the structure beeing volcanic in nature does not invalidate that humans can't use it and build cities on top of it, like in every island out there today... also, no one really knows for sure what the pillars of hercules / heracles were and we suppose it's the Strait of Gibraltar, but in reality could be some place else.
Discussion
The surrounding clues was most interesting to me: atlas mountains, most gold in the world came from that area, plato describing the same rock colors, shells and salt around it. They should excavate both spots, or even off the coast if it all got washed away in a flood.
Have you read The Apocalypse of Yajknavalkya? They describe (with lots of annotations and references) a meteor storm scenario around 15000 years ago that led to a massive amount of steam and dust and around 1200 years of extreme cold and then another 1200 years of relative cold, and this all coincides with "the stone age".
There's so much they reference in there it's ridiculous. I was referred to it by Mark Jeftovich, the Bombthrower former shitcoiner EasyDNS now bitcoiner guy, who had one of his other bloggers publish an excerpt from it about the pizzagate and related things.
As for "they" should do anything. The Bulgarian government forbade further excavation in the oldest known continuously occupied human settlement, Plovdiv, formerly known as Phillipopolis. And the most ancient gold artifacts were found in Varna. The whispers I picked up on in my time living in Bulgaria were pretty interesting, as was my intuition about the place. I never saw such a big mountain as Rila, also, it was so big as I rode in a car towards Blagoevgrad I had one of those trippy movie moments where the sheer scale of the mountain was like it smacked me in the face.
Btw, the evidence of Plovdiv goes back to 6500 years ago. And there is also the Magura Caves and honestly, you have to see the massive stone structures around Belogradchik. IMO it's artificial stone, made by the Atlanteans. I've seen close up photos of it and there was clearly aggregation of old, rounded river stone in the middle of supposedly granite rock formations! Never got the chance to actually see it for myself apart from on the train to Vidim tho.
Magura Caves seem like another underground bunker carved for protection during the younger dryas?
Possibly, but it is the most ancient cave paintings yet found. https://en.wikipedia.org/wiki/Magura_Cave#Paintings 8000-10000 years ago.
The area that these things were found is nearby the Danube river and rivers like her are ancient, far more than 10,000 years old. The danube follows a very long, very flat path out to the black sea and it is unlikely anything near it is recent vulcanism, so the caves could well be excavated by humans, originally, or at least, one of the refuges after they received the warning to hide there by the "angels".
We have cave paintings that go back 70k years ago, but they are abstract.