Waterfall Pictures Wallpaper

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Waterfall Pictures Wallpaper Biography


A unique aspect of the geologic history of the Columbia River Basin is the volcanism that raised the Cascade and Rocky mountains and shaped interior parts of the basin, confining the river in steep valleys and broad canyons later scoured by Ice-Age floods. It is a landscape prone to dramatic waterfalls.

In places, particularly in the Columbia River Gorge, many spectacular waterfalls plummet over steep, rocky ledges. Some run year-round, some run heavy during the spring runoff but are barely more than trickles at other times of the year, and some never flow constantly from top to bottom but turn to mist in mid-air, leaving green streaks of tenacious vegetation on the sheer canyon walls.

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