The staff of the museum-reserve monitored the temple-sanctuary “Kog-Yerda”, located on the southern edge of the tower settlement “Kog”, which is east of “Keli”.
According to the radiocarbon analysis conducted by the archaeological center named after E.I. Krupnov of the republic. E.I. Krupnov of the Republic in 2017, this monument was built in 1441-1486 .
The sanctuary temple is a one-storey building with a rectangular base and a gable-stepped roof made of 10 slates, the thickness of the walls is 60 cm, the area at the base is about 16 square meters. m.
The southern wall is preserved 5 meters high and 3.5 meters wide. The northern wall is 2 meters high and adjoins the rock. A low vaulted doorway is in the eastern wall, near the southeastern corner, and there is a small rectangular niche above the doorway. There is a window aperture in the south wall.
The walls are covered with yellowish-ochre colored plaster on the outside and inside.
The monument is erected neatly on lime mortar. The building was actively functioning until our century.
Despite the fact that the monument has been preserved to its full height, its condition is unsatisfactory: the roof is damaged, the base is weathered, there are cracks on the walls (field material).