Skip to content
YearMaps
River

Omolon

River

Omolon is a mapped river in the YearMaps hydrographic index. River courses organise settlement, agriculture and frontier-making more durably than any political boundary, and this reach is indexed against the dams, lakes and cities within its catchment.

Feature Class
River
Coordinates
65.67°, 159.37°
7.0
Coordinates: 65.6650° N, 159.3732° ECountry: RussiaOpenStreetMap ↗

About Omolon

The Omolon (Russian: Омолон; Yakut: Омолоон, Omoloon) is the principal tributary of the Kolyma in northeast Siberia. The length of the river is 1,114 kilometres (692 mi). The area of its basin is 113,000 square kilometres (44,000 mi2). The Omolon freezes up in October and stays under ice until late May through early June. The lower 600 kilometres (370 mi) are navigable.

Encyclopedic summary adapted from Wikipedia: Omolon (CC BY-SA 4.0).

Omolon in Depth

Course

It begins in the Kolyma Highlands, Magadan Oblast, less than 100 kilometres (62 mi) from the Sea of Okhotsk, flows first northeast, with the Kedon Range to the west, then it bends northwest and forms part of the border of Magadan and Chukotka, with the Yukaghir Highlands to the west. At the western end of the Ush-Urekchen it turns north and crosses Chukotka, briefly enters the Sakha Republic and joins the Kolyma 282 kilometres (175 mi) upstream from the Arctic. Its basin is surrounded by: (west) branches of the Kolyma, (south) Penzhina and others that flow south, (east) Anadyr and (northeast) Bolshoy Anyuy.

Its main tributaries are the Kegali, the west-flowing Oloy (at 471 kilometres (293 mi), the largest tributary), Oloychan, Kedon, Namyndykan, Molongda (Молонгда or Моланджа) and Ango.

Sections adapted from Wikipedia: Omolon (CC BY-SA 4.0).

Omolon: Key Facts

Key facts about Omolon
Length1,114 km
Drainage basin113,000 km²
MouthKolyma
TributariesOloy River, Kedon, Ango, Apkitkich, Bebekan, Bol'shaya Avlandya, Bolshoy Elgenchen, Burlakich

Facts from Wikidata Q1142842 (CC0).

Major River Dossiers

Hand-written studies of the great river systems of history.

Connected Reaches

Nearby watercourses in the same drainage network.

Water Bodies in the Catchment

Settlements Along the Reach

Hydraulic Infrastructure Nearby

Surrounding Terrain

Omolon: Quick Answers

Where is Omolon?
Omolon is located in Russia, at 65.6650° N, 159.3732° E.
Are there dams on the Omolon?
No dam on the Omolon is recorded in the YearMaps dam index, which covers major structures only.