The Yukon River is one of the longest rivers in North America, flowing about 1,980 miles (3,190 km) from British Columbia through Yukon Territory and across Alaska to the Bering Sea. Its drainage basin covers about 330,000 square miles, and it was the principal transport route during the Klondike Gold Rush. The river is also home to some of the longest salmon runs in the world and has been used for thousands of years by Gwich’in, Koyukon, Yup’ik and other peoples [1].

| Length | About 1,980 miles (3,190 km) |
|---|---|
| Source | Llewellyn Glacier, Atlin Lake, British Columbia |
| Mouth | Bering Sea, Yukon–Kuskokwim Delta |
| Drainage basin | About 330,000 square miles |
| Average flow | About 230,000 to 250,000 cubic feet per second |
| Vehicle bridges | Four, including the E. L. Patton Bridge on the Dalton Highway |
Course
The generally accepted source is the Llewellyn Glacier at the southern end of Atlin Lake in British Columbia, though some suggest Lake Lindeman instead. The river flows through Yukon and then west across Alaska, passing communities such as Whitehorse, Dawson City, Eagle, Circle, Fort Yukon, Tanana and Pilot Station before reaching the Bering Sea at the Yukon–Kuskokwim Delta [1].
Drainage Basin
The basin covers about 854,700 square kilometers (330,000 square miles), of which roughly 323,800 square kilometers lie in Canada. The average flow is 6,400 to 7,000 cubic meters per second [1].
Name
The name derives from a Gwich’in phrase meaning “white water river,” referring to the pale glacial runoff. The Holikachuk are reported to have linked it with a Yup’ik term meaning “big river” [1].
Indigenous Peoples
Gwich’in, Holikachuk, Yup’ik, Koyukon and other Dene nations have lived along the river for generations. The Yukon River Inter-Tribal Watershed Council, which includes 70 First Nations and tribes, works to make the river safe to drink from again [1].
Klondike Gold Rush
During the rush of 1896 to 1903, the river was a principal transport route, carrying prospectors and supplies toward Dawson City. Paddle-wheel riverboats operated until the 1950s, when the Klondike Highway was completed [1].
Salmon
The Yukon hosts Chinook, coho and chum salmon runs that are among the longest in the world, with Chinook traveling up to about 3,200 kilometers. Runs have declined sharply in recent decades, and Alaska banned Chinook and chum fishing in 2021, including subsistence fishing [1].
Bridges and Crossings
Four vehicle bridges cross the river, including the E. L. Patton Yukon River Bridge north of Fairbanks on the Dalton Highway. A summer car ferry operates at Dawson City, replaced by an ice bridge in winter [1].
Water Quality and Permafrost
Pollution from military sites, dumps and wastewater has been reported along the river, although the U.S. Environmental Protection Agency does not list it as impaired. Studies cited in the literature suggest that permafrost thaw is increasing groundwater flow into the river [1].
Significance
The river forms a corridor across the north that has shaped human settlement, transport and subsistence for thousands of years, and it flows through several parklands and refuges [1].
The River in Alaska
In Alaska, the Yukon crosses the Interior and the delta region, passing through communities such as Eagle, Circle, Fort Yukon, Tanana and Pilot Station. Villages along the river rely on it for travel, fishing and water, and in winter the frozen river is used as a road [1]. The Dalton Highway bridge north of Fairbanks is the main road crossing in the state.
Transport and Trade
Before roads, the Yukon was the principal highway of the north. During the Klondike Gold Rush, steamboats and other craft carried people and goods upstream and downstream, and paddle-wheel riverboats continued to run until the 1950s [1]. The river’s long navigable course connected remote settlements to the coast.
Salmon and Subsistence
The salmon runs of the Yukon have supported people for thousands of years. The decline of Chinook and chum salmon in recent decades, and the 2021 ban on fishing for them, including subsistence fishing, has been a serious concern for communities that depend on the fish [1].
Cooperation and Stewardship
The Yukon River Inter-Tribal Watershed Council brings together 70 First Nations and tribes from Alaska and Canada to work on water quality and stewardship, with the goal of making the river safe to drink again [1]. Their work reflects the importance of the river as a shared resource across a border.
FAQs
How long is the Yukon River? About 1,980 miles (3,190 km).
Where does the Yukon River start and end? It begins in British Columbia, near Atlin Lake, and ends at the Bering Sea in Alaska.
What does Yukon mean? It derives from a Gwich’in phrase meaning white water river.
Why is the Yukon important for salmon? Its Chinook, coho and chum runs are among the longest in the world, though they have declined sharply.
How many bridges cross the Yukon River? Four vehicle bridges, including the E. L. Patton Bridge in Alaska.
Sources
More in Earth Sciences
Key facts
Quick checkInto what sea does the Yukon River empty?Show answer
The Bering Sea
Sources
- Wikipedia. Yukon River. 2026 (accessed 2026-11-12)
Editorially reviewed by Specialty Digest Editorial TeamLast reviewed November 12, 2026Researched and drafted with AI assistanceReport an issue