Kobuk River

Kobuk Kuuvak  (Inupiaq) Kooak, Kowak, Kubuk, Kuwuk, Kuvuk, Putnam
Sunset over the Kobuk River
Location of the mouth of the Kobuk River in Alaska
Location
Country	United States
State	Alaska
Physical characteristics
Source	Walker Lake
Mouth	Kobuk Delta
Length	280 mi (451 km)
Basin size	12,310 sq mi (31,880 km2)
Discharge
- location	Bering Strait
- average	10,000 cu ft/s (283 m3/s)
- minimum	1,400 cu ft/s (40 m3/s)
- maximum	110,000 cu ft/s (3,000 m3/s)
Basin features
Tributaries
- left	Squirrel River, Tutsuksuk River
- right	Salmon River, Adillik River
National Wild and Scenic River
Type	Wild
Designated	December 2, 1980

The Kobuk River (also Kooak, Kowak, Kubuk, Kuvuk, or Putnam) is a river in the Arctic region of Alaska, in the United States. The river is about 280 miles (450 km) long, and receives water from about 12,300 square miles (31,850 km²) of land. It is among the largest rivers in Alaska. It flows from the southernmost part of the Brooks Range, a mountain range 700 miles (1,100 km) long. Its mouth is at the Kobuk River Delta, which is about 32 miles (51 km) long.

Its watershed, ranging from 0 to 11,400 feet (0 to 3,475 m) above sea level, has a wide variety of landforms, including mountains, plateaus, and plains. The average elevation is 1,300 feet (400 m). The river's name, in the native Inuit language, means "big river".

The river has been an important part of the lives of nearby people. Native people (the Inuit, Koyukans and others) have used the river as a source of food and transport for over 12,000 years. In 1898, a gold rush called the "Kobuk River Stampede" happened. In 1980, 110 miles (177 km) of the river were deemed the Kobuk Wild and Scenic River.