America’s National Parks
Puzzle 79 · Alaska · Page 109 in print
Gates of the Arctic
In Gates of the Arctic, Walker Lake lies at the northern limit of forest growth, typical of the glacial lakes formed in rock basins or behind moraine dams along the Brooks Range.
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Anaktuvuk Pass and the Brooks Range.
NPS/Josh Spice · Public domain (U.S. federal government work) · Original recordImage changes
Resized and converted to JPEG for display; no subject alteration.

The Arrigetch Peaks seen from the air.
NPS/Carl Johnson · Public domain (U.S. federal government work) · Original recordImage changes
Resized and converted to JPEG for display; no subject alteration.
The words
Alatna
The Alatna River, the river corridor near the Arrigetch Peaks.
Anaktuvuk Pass
Anaktuvuk Pass, the roadless village with a summer park ranger station.
Arrigetch
The Arrigetch Peaks, the named granite peaks of the central Brooks Range.
Bob Marshall
Bob Marshall, the wilderness advocate whose exploration inspired the park.
Brooks Range
The Brooks Range, the Arctic mountain range containing the park.
Frigid Crags
Frigid Crags, one of the two mountains forming Bob Marshall’s Gates of the Arctic.
Gyrfalcon
The gyrfalcon, a raptor included in the park’s bird life.
John River
The John River, the river corridor passing through Anaktuvuk Pass.
Koyukuk
The North Fork Koyukuk River, the river flowing through the park’s iconic mountain gates.
Mount Igikpak
Mount Igikpak, the mountain in the Schwatka Mountains of the west-central Brooks Range.
Muskox
The muskox, an Arctic mammal listed among the park’s wildlife.
Noatak
The Noatak River, the Wild and Scenic River with headwaters in the park.
Nunamiut
The Nunamiut, the Indigenous people whose history is connected to the upper Alatna valley.
Treeline
The treeline, the limit of forest growth illustrated by the landscape around Walker Lake.
Walker Lake
Walker Lake, the glacial mountain lake at the northern limit of forest growth.
Sources
- Alatna River - Gates Of The Arctic National Park & PreserveNational Park Service
- Anaktuvuk Pass, Alaska - Gates Of The Arctic National Park & PreserveNational Park Service
- Arrigetch Peaks - Gates Of The Arctic National Park & PreserveNational Park Service
- Bob Marshall - Gates Of The Arctic National Park & PreserveNational Park Service
- What Is Gates of the Arctic? - Gates Of The Arctic National Park & PreserveNational Park Service
- Gates of the Arctic National Park and Preserve: General Management Plan Amendment / Wilderness Stewardship Plan / Environmental AssessmentNational Park Service
- John River - Gates Of The Arctic National Park & PreserveNational Park Service
- North Fork of the Koyukuk River - Gates Of The Arctic National Park & PreserveNational Park Service
- Noatak River - Gates Of The Arctic National Park & PreserveNational Park Service
- Walker Lake - Gates Of The Arctic National Park & PreserveNational Park Service