'Studies of glacial deposits suggest that a large part of the two ice sheets were joined together above central Alberta, near Edmonton, until long after the glacial maximum. Geologists use glacial deposits such as moraine (a landform made up of rocks and sediments that have been transported and deposited by a glacier) and till (unsorted sediments ranging in size from clays to boulders that have been carried and deposited by glacial ice) in addition to the rubble caught up and deposited by glaciers to demonstrate the furthest extent of the sheets.'
https://www.sfu.ca/archaeology/museum/exhibits/virtual-exhibits/glacial-and-post-glacial-archaeology-of-north-america/glaciation-of-north-america.html
Glaciation of North America - Museum of Archaeology & Ethnology - Simon Fraser University
The world was a much different place 14,000 years ago. Global temperatures were significantly colder than they are today, with northern oceans an average of 4 to 8 degrees colder than modern temperatures. Huge stretches of ice covered most of northern Europe and all but the southern tip of the British Isles. In North America, two large ice sheets covered most of Canada during their largest stages, what geologists and archaeologists call the...
'Studies of glacial deposits suggest that a large part of the two ice sheets were joined together above central Alberta, near Edmonton, until long after the glacial maximum. Geologists use glacial deposits such as moraine (a landform made up of rocks and sediments that have been transported and deposited by a glacier) and till (unsorted sediments ranging in size from clays to boulders that have been carried and deposited by glacial ice) in addition to the rubble caught up and deposited by glaciers to demonstrate the furthest extent of the sheets.'
https://www.sfu.ca/archaeology/museum/exhibits/virtual-exhibits/glacial-and-post-glacial-archaeology-of-north-america/glaciation-of-north-america.html
Glaciation of North America - Museum of Archaeology & Ethnology - Simon Fraser University
The world was a much different place 14,000 years ago. Global temperatures were significantly colder than they are today, with northern oceans an average of 4 to 8 degrees colder than modern temperatures. Huge stretches of ice covered most of northern Europe and all but the southern tip of the British Isles. In North America, two large ice sheets covered most of Canada during their largest stages, what geologists and archaeologists call the...