slgwv's photos with the keyword: Snake River Gorge

Carrying U.S. 93 across the Snake River Gorge from Twin Falls, Idaho. Looking north from Twin Falls. The insets show (left) a view of the bridge from the north and upstream side, looking back toward Twin Falls; and (right, below) a view under the bridge from the north side looking south. This inset is positioned at that viewpoint. Perrine was a prominent early settler and promoter. Downstream is to the left.

Snake River, in the Snake River Gorge, Idaho. The original installation dates to 1907--as you might gather from the orange crane, its capacity is being upgraded at present. The spray in the foreground is from the falls themselves.

On the Snake River in southern Idaho. A gray day, but the falls are in fine form! Later in the season they often go dry because of upstream diversions for irrigation. Some water is also diverted for hydropower, in an installation off the pic to the left (inset). Shoshone Falls lies in the spectacular Snake River Gorge, which was scoured and deepened around 18K years ago by the so-called Bonneville Flood. Lake Bonneville, an enormous Pleistocene lake covering much of western Utah, overtopped Red Rock Pass in southern Idaho and started spilling into the Snake drainage. The material where the overflow occurred was loose ("unconsolidated", in the jargon) and started eroding very quickly, to yield the natural equivalent of a dam failure. The top few hundred feet of Lake Bonneville spilled out this way in a matter of a few weeks! Geomorphological evidence indicates that at peak flow the gorge was completely filled brim to brim.