Alaska Rivers & Water Quiz
Yukon system, glaciers, watersheds (10 questions).
Alaska Rivers & Water Quiz: Quick Study Notes
Alaska possesses more than 3 million lakes and 12,000 rivers. Its hydrological systems are dominated by massive glacial runoff, the mighty Yukon River network, and distinct watersheds separated by the Brooks and Alaska Ranges.
Key Takeaways
- The Yukon River is Alaska’s longest river.
- The Brooks Range separates the Arctic watershed from the southern watersheds.
- Iliamna Lake is the largest lake in Alaska.
- Tidewater glaciers are a defining feature of the Southeast Panhandle.
- The Copper River is famous for its productive Sockeye salmon runs.
Frequently Asked Questions
What is the longest river in Alaska?
The Yukon River is the longest, stretching approximately 1,980 miles from its source to the Bering Sea.
Which ocean receives runoff from the North Slope?
Rivers on the North Slope, such as the Colville, flow north into the Arctic Ocean.
What is the largest lake in Alaska?
Iliamna Lake is the largest natural freshwater lake in the state.
Where do the Kuskokwim and Yukon rivers end?
Both of these major river systems empty into the Bering Sea on the west coast of Alaska.
What defines a tidewater glacier?
A tidewater glacier is one that flows directly into the ocean, often calving large icebergs into the water.

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