Editing Laurentide ice sheet (section)

==Ice centers==
<!-- ice centers, ice flows, ice domes -->
During the [[Late Pleistocene]], the Laurentide ice sheet reached from the [[Rocky Mountains]] eastward through the [[Great Lakes]], into [[New England]], covering nearly all of [[Canada]] east of the Rocky Mountains.<ref name=Hill2006>Geologic Framework and Glaciation of the Central Area, 1 January 2006; Christopher L. Hill; Boise State University, Boise, Idaho; 2006.</ref>
Three major ice centers formed in North America: the [[Labrador ice sheet|Labrador]], [[Keewatin ice sheet|Keewatin]], and [[Cordilleran Ice Sheet|Cordilleran]]. The Cordilleran covered the region from the Pacific Ocean to the eastern front of the Rocky Mountains and the Labrador and Keewatin fields are referred to as the Laurentide Ice Sheet. Central North America has evidence of the numerous lobes and sublobes. The Keewatin covered the western interior plains of North America from the [[Mackenzie River]] to the [[Missouri River]] and the upper reaches of the [[Mississippi River]]. The Labrador covered spread over [[eastern Canada]] and the northeastern part of the [[United States]] abutting the Keewatin lobe in the western [[Great Lakes]] and [[Mississippi River#Upper Mississippi|Mississippi valley]].<ref name=Hill2006/>

===Keewatin ice dome===
The Keewatin ice dome has had four or five primary lobes identified ice divides extending from a dome over west-central [[Kivalliq Region|Keewatin]] (Kivalliq). Two of the lobes abut the adjacent Labrador and Foxe-Baffin ice domes. The primary lobes flow (1) towards [[Manitoba]] and [[Saskatchewan]]; (2) toward [[Hudson Bay]]; (3) towards the [[Gulf of Boothia]], and (4) towards the [[Beaufort Sea]].<ref name=Dyke1987>Late Wisconsinan and Holocene History of the Laurentide Ice Sheet, 10.7202/032681ar; Arthur S. Dyke, Victor K. Prest; Geological Survey of Canada; Ottawa, Ontario; 1987; http://id.erudit.org/iderudit/032681ar.</ref>

===Labrador ice dome===
[[File:Glacial lakes.jpg|thumb|right|Stages of [[proglacial lake]] development in the region of the current North American [[Great Lakes]]]]
The Labrador dome flowed across all of [[Maine]] and into the [[Gulf of St. Lawrence]], completely covering the [[The Maritimes|Maritime Provinces]]. The Appalachian Ice Complex, flowed from the [[Gaspé Peninsula]] over [[New Brunswick]], the [[Magdalen Islands|Magdalen Shelf]], and [[Nova Scotia]].<ref name=Dyke1987/>
The Labrador flow extended across the mouth of the [[St. Lawrence River]], reaching the [[Gaspé Peninsula]] and across [[Chaleur Bay]]. From the Escuminac center on the [[Magdalen Islands|Magdalen Shelf]], flowed onto the [[Acadian Peninsula]] of [[New Brunswick]] and southeastward, onto the Gaspe, burying the western end of [[Prince Edward Island]] and reached the head of [[Bay of Fundy]]. From the Gaspereau center, on the divide crossing New Brunswick flowed into the Bay of Fundy and Chaleur Bay.<ref name=Dyke1987/>

In New York, the ice that covered Manhattan was about 2,000 feet high before it began to melt in about 16,000 BC. The ice in the area disappeared around 10,000 BC. The ground in the New York area has since risen by more than 150&nbsp;ft because of the removal of the [[Post-glacial rebound|enormous weight of the melted ice]].<ref>{{cite news |last1=William J. Broad |title=How the Ice Age Shaped New York |url=https://www.nytimes.com/2018/06/05/science/how-the-ice-age-shaped-new-york.html |access-date=24 February 2019 |work=The New York Times |date=5 June 2018 |quote=the ice was about 2,000 feet thick over Manhattan}}</ref>

===Foxe-Baffin ice dome ===
The Foxe-Baffin ice dome was circular and centered over the [[Foxe Basin]]. A major divide across the basin, created a westward flow across the [[Melville Peninsula]], from an eastward flow over [[Baffin Island]] and [[Southampton Island]]. Across southern Baffin Island, two divides created four additional lobes. The Penny Ice Divide split the [[Cumberland Peninsula]], where [[Pangnirtung]] created flow toward Home Bay on the north and Cumberland Sound on the south. The Amadjuak Ice Divide on the [[Hall Peninsula]], where [[Iqaluit]] sits created a north flow into [[Cumberland Sound]] and a south flow into the [[Hudson Strait]]. A secondary Hall Ice Divide formed a link to a local ice cap on the [[Hall Peninsula]]. The current ice caps on Baffin Island are thought to be a remnant from this time period, but it was not a part of the Baffin ice flow, but an autonomous flow.<ref name=Dyke1987/>