The Chyolomdzha (Russian: Чёломджа; Even: Чаламдя) is a river in Magadan Oblast, Russia. It has a length of 228 kilometres (142 mi) and a drainage basin of 12,000 square kilometres (4,600 sq mi).^[2]

Quick Facts Chyolomdzha Чёломджа / Чаламдя, Location ...

Chyolomdzha Чёломджа / Чаламдя
Mouth location in Magadan Oblast, Russia
Location
Country	Russia
Federal subject	Magadan Oblast
District	Olsky District
Physical characteristics
Source
• location	Upper Kolyma Highlands
• coordinates	60°34′05″N 145°41′10″E
Mouth	Taui
• coordinates	59°46′52″N 148°15′19″E[1]
Length	228 km (142 mi)
Basin size	12,000 km2 (4,600 sq mi)
Discharge
• average	132 m3/s (4,700 cu ft/s)
Basin features
Progression	Taui → Sea of Okhotsk

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The Chyolomdzha is the longest tributary of the Taui (Kava) and flows across an uninhabited area, part of the Magadan Nature Reserve.^[3] The name of the river originated in the Even language.^[4]

The source of the Chyolomdzha is in the Upper Kolyma Highlands. The river heads in a roughly southern direction, flowing fast across mountainous terrain, then it turns to the southeast descending into a floodplain where it slows down and splits into multiple sleeves, while the channels form meanders. Finally the Chyolomdzha joins the left bank of the Taui in the wide Kava-Taui Plain, 66 kilometres (41 mi) from its mouth in the Sea of Okhotsk.^[3][1][5]

The river freezes yearly between early October and late May.^[5] Its main tributary is the 124 km (77 mi) long Burgagylkan (Бургагылкан), joining its left bank in the lower course.^[2]

Different species of salmonids live in the waters of the Chyolomdzha, including chum salmon, malma, coho salmon and kundzha, as well as grayling.

The banks of the river provide a habitat for the Blakiston's fish owl, an endangered species.^[6]

• List of rivers of Russia