The water at the ice dam in northern Idaho was 600 m (2000 ft) high and upstream covered what is now the city of Missoula, Montana, to a depth of 300 m (1000 ft). Shorelines from this ice age lake are commonly seen in the valleys of western Montana. It is believed this giant lake emptied in two days, rushing 120 m (400 ft) deep over the present locations of Spokane, Washington, and Portland, Oregon. It sped at up to 100 kph (60 mph) through tight spots in eastern Washington and 80 mph through the Columbia Gorge between Washington and Oregon. It rapidly carved out the distinctive landscape known as the Channel Scablands, including the majestic canyon known as Grand Coulee...and yet...
The geologists will surely whitewash the scientific persecution that Bretz endured for 40 years because the flood seemed too biblical in proportion...
Grand Coulee, up to 50 miles long and 900 feet deep, likely was excavated very quickly by receding waterfalls. Geologists would expect such canyons to have been carved in millions of years by present-day streams.
In one of the few places where rivers do not flow to the sea, (geologist Noah) Snyder’s research into a 1941 stream diversion in the historic park uncovered a rare glimpse into a range of geological changes that might otherwise take centuries to unfold but instead are revealed following the flashfloods that strike the park, located against the Nevada border.Those who cling to the theory of evolution construct elaborate theories usually involving unimaginable amounts of time. More and more, however, evidence is emerging that the physical world we see around us isn't the result of vast amounts of time, but rather vast amounts of water.
“This is an unusual opportunity to see how a river system responds to an extreme change in the historic rates of water and sediment flow,” said Snyder.

(HT: AiG)


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