Spaceport for UFOs? "Kasli anomaly", Russia.

Landmark or spaceport for UFOs? "Kasli anomaly", Chelyabinsk Region, Russia. Google Earth.
The coordinates of the anomalies of 55 ° 53 '7.83 ", 60 ° 49' 3.38" . This place is situated near the town of Kasli, in the Chelyabinsk region, Russia. "Anomaly" consists of two concentric circles, formed from trees growing on some stone embankments.
In a study of one of the circles through a metal detector - at a depth of 35 centimeters was found old-fashioned cable. Where and how was laid cable - is unknown, but one can assume that the cable is stretched across the entire range to a certain center (find the center failed). Cable and its use are being investigated.