アルダン川
Well aware of the great importance of Yakutia for the economy, the Soviet government in May 1925, taking urgent measures to build a road from the Amur River, across the river Aldan, to Yakutsk, began in the same year and went full swing. In parallel with the researches were carried out work on the construction of artificial structures and subgrade over 120 kilometers between the backbone and the river Chulman, and in the autumn of 1925 cuttings from the village unnoticed to Aldan River was completed. The construction seasons of 1926–1927 years in the area from Yablonovy pass - p. Chulman - Obscure etc. -.. N Tommot work continued on the construction of bridges and roadbed device, constructed industrial buildings for road units and houses. By the end of 1927 were carried out engineering survey route of the future highway from n. Tommot toward Yakutsk.