The secret of the waterfall and devil's Cauldron

Damn boiler or Devil's cauldron is a mysterious geological phenomenon.

The most visited attraction in the National Park judge C. R. Magney, Minnesota, USA, near the North shore of lake superior, the mysterious failure, which disappears water.

Through the Park flows the river Brol, it falls from the height of a hundred feet or more and creates numerous waterfalls, and one of these waterfalls is quite strange. For 2.4 km before the river empties into lake superior, it is divided by a rock into two parts. The Eastern part falls from a height of 15 metres and continues its course to the Upper lake. The Western part falls into a giant pothole, the Devil's cauldron and disappears. No one knows where next the water flows. Presumably, the exit has to be somewhere below lake superior, or under him, but he is still not detected.

For many years curious tourists throwing sticks or other objects into the bubbling water to see whether or not they are downstream, but never saw nothing.

It was assumed that the water goes through the hidden underground path to the lake. Geologists say it's unlikely. Underground water path formed in the softer rocks, such as limestone, but Geology of the North shore is not soft. Tunnels or lava tubes are formed in rhyolite or volcanic basalt, and it is these rocks lining the riverbed, and there is no evidence of the existence of faults.

In the late fall of 2016 hydrologist Jeff green from the Department of natural resources the Minnesota (DNR) has proposed to conduct an experiment. DNR hydrologists Heather Emerson and John Libby measured the volume of water flow over the boiler of the Devil, and he made 348 cubic liters per second. A few hundred meters below the waterfall the water flowed at a speed of 346 cubic liters per second.

"The practice of measuring flows shows that these numbers are essentially the same and are within the tolerance of the equipment," explained green. "Measurements show that under the fault no loss of water downstream, this confirms the theory that the water is returned to the main stream somewhere in the vicinity of the basin".

Green said that they didn't know exactly where it joins the stream, but it is possible to observe two different process of "boiling" water at the base of the waterfalls, so he suspects that the Devil's cauldron is emptied right down, connecting with the main course.

As for the mysteriously disappearing items, the power of water and the dynamics of liquids give this phenomenon an explanation: "the Deep pool under the boiler – it's incredibly powerful recirculating currents can break up and split the items and hold them under the water."

Jeff green and Calvin Alexander, his colleague at the University of Minnesota, was planning to conduct a trace to see where the water comes to the surface. They planned during the low-water discharge into a pothole fluorescent biodegradable dye is plant-based, to prove the connection threads, as the dye will show you how the water goes through the boiler of the Devil.

But scientific conclusion of the story will not follow, as the Park authorities strongly objected to the further research on-site. Most likely, the Park staff are concerned that the evidence scientists would deprive the Devil's Cauldron its attractiveness, and the flow of tourists significantly thinned, as the mystery is a good source of income, but scientific truth can wait.

Manager State parks Pete Mott said that Devil's cauldron is a unique geological formation, causing the feeling of something otherworldly, and always will be. DNR staff have not given permission and recommended to abandon the research. Mott added that curious members of the public should also refrain from taking the experiment into their own hands.

Reports that the experiment took place, yet. DNR staff said that the mystery of the waterfall revealed: the streams of the river unite.

Translated by «Yandex.Translator»