YAKUTSK ASSR. The “Obruchev path” in Oimiakonsk district, this was the route taken in 1920-ties Ьу Sergei Obru­chev^ expedition. Photo: А. Falamov

YAKUTSK ASSR. The “Obruchev path” in Oimiakonsk district, this was the route taken in 1920-ties Ьу Sergei Obru­chev^ expedition. Photo: А. Falamov