This construction is shaped like a semi-circle and built on solid rock, an existing granite block shaped to blend with the natural curves, with a diameter of 10.50 meters. It is composed of highly polished polyhedrons. There are two trapezoidal windows in this building with protruding knobs at every comer, and on the north side there is a carefully-sculpted door with bored holes in the doorjamb, very similar to the Qoricancha temple in Cusco. The Spanish historians relate there were once gold and precious jewels encrusted in the door. To the West of the temple there is a rectangular patio with nine ceremonial doorways alternating with prism-shaped studs.
This stone is located on a hill made up of several terraces. The visitor can gain access to the stone via 78 well-crafted steps. At the end of the staircase one enters an open patio with walls equally well-sculpted, and where one can see an upper platform where there is a granite rock sculpted into three steps. In the central part one can see a rectangular prism that is 36cm high and which is pointing from North-West to South-East.