If you walk along the path up to the pyramid of the moon, you suddenly find yourself in front of a property that is surrounded by a high barbed wire fence. The excavations seem to be carried out privately here.
We walk around the barbed wire fence to the left until we get to the opposite side, there we find positions from the civil war as well as excavations on this and beyond the barbed wire fence. The mine danger within the position system is rather low, nevertheless extreme caution.