 There are inhabited centers of population in the lowlands such as Chokurdakh, Olenegorsk and Nizhneyansk, but these are very few and scattered.The lowland is named after the Yana River in the west and the Indigirka River in the east and is crossed by both rivers in their middle and lower courses.The area is mostly flat and very marshy, its northern limits extending for over from the Buor Khaya Gulf of the Laptev Sea in the west to the delta of river Indigirka in the East Siberian Sea in the east.