Aaaaaaaaaaaaaaaaaaaaaaaaah - 'lateral moraine', NOW you're talkin'! My masters in remote sensing included a very detailed study of the Glacial Lake Missoula floods and post-event geomorphology. Thankfully, we spend at least a month most years in Oregon, where the Northern boundary - the Columbia River Gorge - is THE place to see the effects of five hundred cubic MILES of water heading to the sea. I often visualise Portland under 400 feet of water, as do many folks today, TBH
- here's the 'Big Pink' building with all but the top forty feet underwater....
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This is a friend at Crown point - imagine a wall of water level with the upper bank heights coming at you here...................................shibber................
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