The Dalles, Oregon Shamrock Tour®: Exploring the Columbia River Gorge Area

Jul 17, 2017 View Comments by

The Columbia River Gorge’s breathtaking vistas owe its heritage to a series of geological cataclysms during the last ice age. A huge 2,000-foot-deep glacial lake had formed over present day Missoula, MT. The ice dam, impounding the glacial melt, gave way, sending a massive torrent of destruction down the Columbia River. Geologists believe the ice […]

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