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Old 06-18-2015, 11:36 PM   #25
MurrayM
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City: Kitimat, North Coast BC
Country: Canada
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Vessel Model: 30' Sundowner Tug
Join Date: Jul 2012
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Quote:
Originally Posted by Wxx3 View Post
Humans were able to occupy North America because the western and southern portions of Alaska were warmer then now.

The North American ice sheet was centered on Hudson's Bay and that sheet ice was kept rest of the coastal ranges, though some individual glaciers were larger then today.
All the mountains on the north coast of BC under 5,500 feet high are rounded and smooth because they were under ice...all the taller mountains have pointed tops because they were taller than the ice was thick.

Here's an illustration from Vancouver BC's Simon Fraser University (looks like an ice sheet and a wee bit colder than today to me )
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