The Ulbeya is a river in Okhotsky District, Khabarovsk Krai, Russian Far East. It has a length of 399 km and a drainage basin of 13,500 square kilometres.

A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is sepa