By erosion the originally smooth terricon surface changes, the water running down the slopes creates the ribs that are getting deeper (on the right).

And after a long time we can see this:

But this terricon no longer has 300 meters but more than three kilometers, and with its surroundings looks like this:

Chronological Volcano, 3528 m, Kamchatka

You say - but it is a volcano! Sure, so is her name. But there's something missing from this volcano. Crater. But we have a giant mine floating in its immediate vicinity with a well-aligned edge ...
And we are behind why many researchers believe that some volcanoes are actually artificially created terrricons. And there is definitely no evidence here.
For example?
45 years ago, for example, a heap exploded in the Donetsk region, which contemporary historians have included in the list of major man-made disasters of Ukraine.

On June 10, 1966, at 23:00 pm, a piece with a volume of 33 cubic meters broke off from an old heap from a shaft in the town of Dimitrov (Donetsk region). Hot multicolored lumps and a loose amount of hot rocks slumped into a residential area and buried 10 houses and people beneath them. After the rock mass had collapsed, hot ash, dust and steam as well as from the volcano crater spewed out of the cavity formed in the side of the hundred-meter heap, and their temperature reached 3000 ° C. They did not write about the past tragedy for the first time until 30 days later. "  

I recommend reading the whole <a href="https://cdn.shopify.com/s/files/1/1932/8043/files/200721_ODSTOUPENI_BEZ_UDANI_DUVODU__EN.pdf?v=1595428404" data-gt-href-en="https://en.notsofunnyany.com/">here</a>.
Let us also testify about the explosion of the heap in Dimitrov, especially for those for whom the opinion of the authority is important.

About the demise of the Nachalovka settlement and the dangers that today are heaps was denounced by a correspondent, an eyewitness, a person who participated in an explosion investigation, an academician of engineering sciences in Ukraine, a doctor of technical sciences, a professor, a head of the National College of Mining, a director of the Research Institute of Mining Mechanics MM Fedorova, Boris Grjaduščij the following:
"Volcano explosion. Literally. After all, our dumps are layered rocks, coal, mined from the shaft and many other elements, including rare minerals in the coal itself. So: the temperature in the middle of such a heap, a rock dump, especially of the cone type, exceeds 3-4 thousand degrees! This means that, in fact, the city of Donetsk and the mining towns around it are surrounded by slowly developing volcanoes. There is a beautiful song about Donetsk - a city with blue dumps, a city of silver poplars. But blue dumps are no poetic metaphor. At night you can see the glow over the dumps. This bluish fluorescence creates a high temperature that is inside such a dump. And also radiation of precious metals. And any effect of rainwater runoff on the dump can have catastrophic consequences. ”

Illustrative image - Horlivka, Ukraine, 30. years

So replace the words hill, mound, volcano, volcano with the words dump, terricon in your dictionary and everything will be clear in your head. And if you want to dismiss this theory as too crazy, hold on and let's take another look.

To get metal or coal - as we have already said - the need for a huge amount of ore to pass through the enrichment plant. The required raw material continues with further processing, the waste - the waste goes to the heap.
Terricorn mines and enrichment plants contain iron sulfide in the form of pyrite and marcasite, which, with the aid of oxygen from the atmosphere, oxidizes with the chemolithrophy bacteria Acidithiobacillus ferrooxidans and releases heat. It is a complex process not only related to rot. 
(wikipedia: ... pyrite may oxidize as a result of humidity, producing sulfuric acid, which has a very negative effect on the surrounding environment, which produces acid mine water, which is a major environmental burden even hundreds of years after the end of active mineral extraction. for example, non-man-made raw materials. Its tendency to oxidation can be dangerous.)
So some heaps contain a certain amount of coal and other flammable materials, absorbing oxygen on the surface of the particles and entering into an exothermic oxidation chemical reaction. As a result of these processes in the large terricones, various processes of technogenic pyromethophorism are often carried out:
• Coal incineration (areas in oxidation mode of baking)
• pyrolysis of coal (regeneration roasting zone at T = 800 - 1000 ° C)
• Dehydration reaction of layered silicates resulting in massive evaporation of water as well as removal of fluorides, chlorides in the initial stages of heap burning (T = 600 - 700 ° C)
• carbonate decomposition with CO and CO2 removal and formation of peroxide, lime and ferrite (T = 600 - 800 ° C)
• local melting with glacial clinker formation and basal parallelism (T = 1000 - 1250 ° C).
These processes lead to a fundamental change in the phase composition of the rolling mass.
In addition, there may be other specific processes in the heaps based on which raw material was specifically mined. Thus, in terricones, temperatures are so high that it completely matches the processes inside the volcanic volcano. And now imagine that about every third terricon is burning in Donbas!

But how does it really work with those "very high" temperatures inside the Earth?
The official theory is known. However, she is not the only one, and we have long been accustomed to not tell the official information for the only one right. So, congratulate you.
At the end of XX. For centuries, for the research purposes in the USSR on the Kola Peninsula, a depth drilling was made, the aim of which was to reach the maximum possible depth and carry out a wide range of measurements. He managed to crawl up to 12.350 meters! Research on this drilling brought significant corrections to the views of the upper layers of the planet, their density, mineralization, and we are also interested in changing temperature with increasing depth. Thus, for example, it has been measured that in these places up to approximately 10 km the temperature increases regularly until it reaches 200ºC. But, compared with expectations for more than two kilometers, the practice of raising has ceased. Unfortunately, the drill did not get. And now we must logically ask - and from where does the "maggot" magma take 600 - 1500 ° C in the volcanoes? If, according to current science, the earth's casing (the temperature of which was only theoretically calculated but not practically verified), then it would have to be very large for the penetration of ten kilometers by the earth's crust (but in some places it may be even more) probably cool down. So it's not so clear with those volcanoes.
In addition, other very interesting information appeared at the same time. In 1981, three researchers - Nikolai Goncharov, Valery Makarov and Vyacheslav Morozov - opposed the official claim that there is a plasma of several thousand degrees inside the Earth, who summarized the results of their many years of research in the article "In the Rays of the Earth's Crystal". networks of special zones occurring on the surface of our planet. In their view, the core of the Earth is formed by a crystal having the shape of a icosahedron and a duodenum embedded in each other. This core grows and has a temperature of only about 300ºC. According to researchers, there are reasons to believe that the same temperature is inside all planets and stars, because they are also living organisms. In this context, let us recall the legends of the torn-off peoples of the planet (eg Dogons), in which it was quite common to consider the Earth and the Sun as living entities and certainly did not understand expressions as "mother Earth" or "Dad of the Sun" as poetic personification. So there is some room for the formation of "hot liquid" magma.

Does it sound too fantastic?
Well, we'll add more information.
In the middle of the XX. In the 1917th century, in the vicinity of the city of Alexandrov in the Vladimir region, there were still people who dug tunnels to a depth of 400 to 600 m until XNUMX. At that time, the equipment used technology completely unknown to current professionals. In the process of excavation, according to their description, the mass of the soil "changed into fine sand and gravel, which was then blown out through a borehole at night and spread on the surface by the wind or formed a hill." The walls of the tunnel were then sunburned by a focused energy current of a special device, which ensured waterproofing and strengthening of the walls. Oxygen was not needed for this. According to information from one of the tunnel builders of the time, the equipment used for this purpose was walled up in the side recesses of the corridors, but they knew nothing more about it. The builders came to the surface in special elevators in a very short time. Subsequent inquiries about these facilities by leading Moscow builders did not yield any results. Of course…
Let us recall the African Dogs who claim that their ancestors came to Earth from other planets and built their homes inside the Earth's crust using the technique they brought with them. Underground housing estates gave them safety in times of disaster and protection from cosmic influences.
And here comes the logical question: what did they do with the ground? How did they get it out and where they stored it, so that it did not wake up unnecessary attention? For reasons of safety, the hopper should be as broad as possible so that the aforementioned dangerous processes are not cumulatively accumulated. But what if the space is not and waste is to be bought in the smallest area?
Sype to the heights.
And how?
That's another thing.
During the construction of underground structures, the excavated soil was thrown out of the depth by several shafts and boreholes in a reactive manner. Separate jet discharge equipment has been installed on each section of the borehole. In this fiery stream, everything that was kicked was melted, and in the form of a "lava" it flowed out of the throat of a "volcano."

In the territory of Russia and other countries of the world, you can see on a relatively level terrain both individual and group hills - mountains with altitude up to 200 m. Such are, for example, near the Taman peninsula of Kubana, some of them in the form of marsh volcanoes. Studies show that a strange coincidence is just above the path of the ancient tunnel, which runs through a large arc under the peninsula and faces the Kerch Strait. Entrances to this tunnel were walled sometime in the 5th century AD during the wars and the migration of nations. In the Crimea area of ​​Kerch, the tunnels continued in the western but also in other directions, including Pioneer and Sudak.

mud volcano - Taman Peninsula, RF

Other renowned mud volcanoes are found in Romania near Berca village in the eastern Carpathians.

mud volcanoes - Berca, Romania

And if we look at the map and add the familiar nodes of the ancient intercontinental tunnels, it fits in quite well.

points indicate from the left: Bucegi, Berca, Taman Peninsula, Krasnodar

Nowadays, in many countries of the world, the construction of both tunnels and entire underground cities for long-term stays up to tens of thousands of people in one place. They arise in the event of earthquakes or cosmic disasters. It is clear that in this building, new hills and terrricons have to be created logically on the surface of the planet ...
So here, not entirely unconnected, we remind one very special area: the northernmost desert, paradoxically surrounded by forests and marshes. Where is?
When you look at the map at 56.843394 coordinates, 118.139550, you can find there "Čarské písky". At a height of about 750 meters above sea level, between a two-thousand-square-mile is a ten-kilometer-long plain covered with millions of tons of sand in a layer of thick 3-15 meters. Where did he get here?
And mainly: why and where does it grow?
Try to answer yourself based on what was written here.

More beautiful photos of this place can be found <a href="https://cdn.shopify.com/s/files/1/1932/8043/files/200721_ODSTOUPENI_BEZ_UDANI_DUVODU__EN.pdf?v=1595428404" data-gt-href-en="https://en.notsofunnyany.com/">here</a>.