[Mike Darancette]

According to geologists, Lake Bonneville was formed from an ice dam during the last major Ice Age on this planet.

The ice dam formed and burst some 40 times.

I don't buy this Grand Canyon formation theory though. There should be some heavy evidence of a flood of such magnitude many miles below the dam location such as plunge pools and ripples.

Also assuming that the elevation of the river bed above and below the dam would be about the same you would think that there would be a waterfall where the escaping water first gouged the river bed below the breech.

[Mind-numbed Robot]

When the natural lava dam failed, it unleashed 15 million cubic feet of water per second -- 37 times larger than the biggest Mississippi River flood -- helping to carve the lower canyon.

Like you, I am skeptical of this theory. The Mississippi River flood of the late sixties covered much of Miss., La. and some other states. I remember seeing water as far as the eye could see from 35,00 ft. A lake with 37 times that much water would have covered quite and area, too much IMO to be contained by a dam at one end.

[Mike Darancette]

The ice dam formed and burst some 40 times.

Talking to myself I say it was lake Missoula that formed some 40 times.

Lake Bonneville had nothing to do with an ice dam. Appx 17,000 years ago the lake reached the level of Red Rock Pass (5,220') in S. Idaho and wore it down about 375 feet in 1 year.

The leftover is the Great Salt Lake and given enough rain Lake Bonneville could form again.