Lake Rock in the US state of Wisconsin. In 1967. scuba divers discovered 13 stone pyramids at a depth of 40 meters. Each of them was a rectangle with a 9x10m base. The pyramids are arranged in a crescent at the same distance from each other. They rise above the muddy bottom to a height of 3 to 8 m.
Rock Lake Pyramids These underwater monuments are made of different boulders, but they are all huge. Individual blocks weigh from 2 to 5 tons. The stones are carefully matched to each other. It is surprising that they are held together with a composition similar to modern concrete.
The stone monuments of the Rock Lake are more than 12 thousand years old. They were built at the very end of the Ice Age. As a result of the melting of glaciers, they were under water. In addition to the pyramids at the bottom of Lake Rock, destroyed houses, the ruins of a large arch, stone embankments and breakwaters were found. A whole sunken city. In the middle of the reservoir, the ruins of an ancient observatory were found, strictly oriented to the cardinal points. Twelve thousand years ago, among the primitive tribes of North America, a civilization existed separately, observing the Sun, Moon and stars.
Structures similar to the mysterious submerged city of Lake Rock have been found in Mexico and Guatemala. Thousands of kilometers away. Why did an unknown people come so far to the north of the continent? What made them build a city and then suddenly abandon it?
It is still unknown what kind of city rests at the bottom of the American Rock Lake. An unknown race that existed in North America 12 thousand years ago was far superior in development to its contemporaries - people. Lost civilization. The purpose of her presence on Earth remains a mystery to us.