Complex sentence: It is formed by the confluence of the Delyankir and Khudzhakh Rivers, and reaches its mouth at the Indigirka at the gold mining town of Ust Nera on the Kolyma Highway.
Split into simpler sentences: It is formed by the confluence of the Delyankir and Khudzhakh Rivers. It joins the Indigirka at the gold mining town of Ust Nera which is on the Kolyma Highway.