A Guide to Haze in the Columbia River Gorge - OPB

Thousands of people enjoy the Columbia River Gorge each year. They splash in the waterfall pools and hike the trails. But few people return home with a clear pictures of the beauty there because haze shrouds the gorge. The Columbia River Gorge is a natural funnel for pollution, stretching more than 85 miles of the Washington-Oregon border.

Oregon Field Guide, Gorge Weeds, Season 24, Episode 2403

Columbia River Gorge National Scenic Area

Columbia Gorge Autumn Ablaze - Columbia River Gorge - Hood River, Oregon / Blaine + Bethany Gallery

Old Vista Ridge Trail

Wonders of the Columbia Gorge Friends of the Columbia Gorge

Columbia Gorge on Oregon Field Guide

Columbia River Gorge Geology Tour - OPB

Department of Environmental Quality : Regional Haze : Air Quality : State of Oregon

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