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Portland Monthly

Slideshow

Slide Show: Behold, an Oasis

May 19, 2009

A juvenile raccoon takes refuge in a small storm-water pipe protruding from the slough’s banks.

Photography by Mark Gamba

Great blue herons are commonly spotted along the Columbia Slough; the watershed houses a heron rookery of some 85 nests.

Photography by Mark Gamba

THE QUIET SIDE Popular with birders, thanks to wetlands that provide habitat for numerous species, the Big Four Corners region of the Columbia Slough is a little-known wild

Photography by Mark Gamba

GREEN CANYON After it rushes headlong from the Coast Range, the 80-mile-long Tualatin River meanders more slowly through veritable canyons of trees.

Photography by Mark Gamba

Smaller than the great blue herons often seen on the Tualatin River, the green heron is identified by its glossy greenish cap.

Photography by Mark Gamba

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The Columbia Slough ABOUT 20 YEARS AGO, when a handful of intrepid explorers began paddling the Columbia Slough, most people considered them 1) weird and 2) practically suicidal. At the time, the 18.7-mile slough, which runs roughly parallel to the Columbia River from near Gresham through North Portland, was no...
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