|Basin size||32,400 km2 (12,500 sq mi)|
|Length||841 km (523 mi)|
The Morkoka (Russian: Моркока) is a river in Sakha Republic, Russia. It is a right tributary of the Markha River. It has a length of 841 km (523 mi), and it has a basin size of 32,400 km2 (12,500 sq mi). The river sources from Lake Bayyttah and travels through the Vilyuiskaya Plateau.
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