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Toolik River is a fine example of a beaded tundra stream. Channels with regularly spaced deep and elliptical pools connected...
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Toolik River

Alaska

Toolik River is a fine example of a beaded tundra stream. Channels with regularly spaced deep and elliptical pools connected by narrow runs are a common form of many streams that drain Arctic permafrost foothills and lowlands. These channels are often referred to as "beaded" streams because during summer low flows, pools appear as beads-on-a-string. Photo © copyright by Robert Faucher.

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