Sunday, October 03, 2010

Early October at Shoshone Falls on the Snake River in Idaho

I recently took a day trip to Shoshone Falls, near Twin Falls, Idaho. The falls change from year to year and month to month, depending on the amount of water flowing in the Snake River. I am presenting three of my images for your enjoyment.




Sometimes called the "Niagara of the West," Shoshone Falls is 212 feet (64.7 m) high -- 36 feet (10.97 m) higher than Niagara Falls -- and flows over a rim 900 feet (274 m) wide.
















A park overlooking the waterfall is owned and operated by the City of Twin Falls. Shoshone Falls is best viewed in the spring as diversion of the Snake River for irrigation often significantly diminishes water levels in the summer and fall.













Shoshone Falls has existed at least since the end of the last ice age, when the Bonneville Flood carved much of the Snake River canyon and surrounding valleys. It is a total barrier to the upstream movement of fish. The falls were the upper limit of sturgeon, and spawning runs of salmon and steelhead could not pass the falls. Yellowstone cutthroat trout lived above the falls in the same ecological niche as Rainbow Trout below it. Due to this marked difference, the World Wide Fund for Nature used Shoshone Falls as the boundary between the Upper Snake and the Columbia Un-glaciated freshwater eco-regions.

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