The site has been tested with seven geophysical methods using the most modern equipment. All tests were performed twice to avoid confusion. The study was conducted for about 4 months since May 2017.
The results indicate anomalies, which may be an underground tunnel of about 300 meters in length. Gravimetric measurements showed anomaly at depths of up to 15 meters.
Previous studies were performed in the right place, but dug too shallow - explorers were allowed to carry out work to a depth of 6 meters.
Further excavations will be carried out in the spring of 2018.
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