719	279	urals / china / siberia
739	297	siberia / china / mongolia

739	297	siberia / china / mongolia
739	274	siberia / mongolia / irkutsk

739	274	siberia / mongolia / irkutsk
732	251	
753	247
755	225	siberia / irkutsk / yakutsk

755	225	siberia / irkutsk / yakutsk
753	165	siberia / yakutsk / artic

753	165	siberia / yakutsk / artic
688	200	urals / siberia / artic

688	200	urals / siberia / artic
719	279	urals / china / siberia