are short rivers flowing from the Verkhoyansk Mountains or the Chersky Range, part of the East Siberian Mountains. History Evidence of modern human habitation was found in the delta at the Yana RHS (Rhinoceros Horn Site) as early as 32,000 years ago. These people, designated as "Ancient North Siberians”, genetically diverged 38,000 years ago from Western Eurasians, soon after the Western Eurasians split from East Asians. In 1633–38 Ilya Perfilyev and Ivan Rebrov sailed down the Lena and east along the Arctic coast to the mouth of the Yana and reached the Indigirka estuary. In 1636–42 Elisei Buza followed essentially the same route. In 1638–40, Poznik Ivanov ascended a tributary of the lower Lena, crossed the Verkhoyansk Range to the upper Yana and then crossed the Chersky Range to the Indigirka. In 1892–1894 Baron Eduard Von Toll, accompanied by expedition leader Alexander von Bunge, carried out geological surveys in the basin of the Yana (among other Far-eastern Siberian rivers) on behalf of the Russian Imperial Academy of Sciences. During one year and two days the expedition covered , of which were up rivers, carrying out geodesic surveys en route. See also List of rivers of Russia Yana Plateau References General References William Barr, Baron Eduard Von Toll's Last Expedition. Arctic, Sept 1980. Alexander von Bunge & Baron Eduard Von Toll, The Expedition to the New Siberian Islands and the Jana country, equipped by the Imperial Academy of Sciences. 1887. Rivers of the Sakha Republic East Siberian Lowland