[2] Prehistoric flora has been studied by analyzing sediments of canyon's Gordian lake, which are 27 meters or more thick.

Gordian lake sediments from Pleistocene epoch have clear evidences of seasonal precipitation, as each year has pair of corresponding layers.

Palynological study revealed remains of archaic, now extinct in this region species of flora including Swamp cypress, Taxodium, Engelhardia, Careya and Tsuga.

In the higher layers of the Gordian Lake sediments, traces of these plants was not found, reflecting the climate-induced orogenesis.

The second 645m long stone paved path with 989 steps of metal stairs smoothly leads to the Okatse river and to the canyon bottom.