Dulgalakh Дулҕалаах
Basin of the Yana.
Native name	Дулҕалаах (Yakut)
Location
Country	Yakutia, Russia
Physical characteristics
Mouth	Yana
• location	Confluence with the Sartang
• coordinates	67°27′51″N 133°14′51″E / 67.46417°N 133.24750°E / 67.46417; 133.24750
• elevation	132 m (433 ft)
Length	507 km (315 mi)
Basin size	27,300 km2 (10,500 sq mi)
Discharge
• average	101 m3/s (3,600 cu ft/s)
Basin features
Progression	Yana→ Laptev Sea

The Dulgalakh (Russian: Дулгалах; Yakut: Дулҕалаах, Dulğalaax) is a river in Yakutia, the left, western source river of the Yana. Its length is 507 km (315 mi) and its basin size 27,300 square kilometres (10,541 sq mi).^[1]

The Dulgalakh rises on the central Verkhoyansk Range, south of the southern slopes of the Arkachan Plateau. It flows through Kobyaysky and Verkhoyansky districts. Above Verkhoyansk it merges with the Sartang forming the Yana.^[2]

• List of rivers of Russia
• Yana Plateau
• Yana-Oymyakon Highlands§Hydrography