Chapter+Twelve

Chapter Twelve The Great Plains and Prairies media type="custom" key="27718033"

= Chapter Twelve Vocabulary =

Canadian Wheat Buffalo Commons Barbed Wire Elevation Spring and Winter Wheat Canadian Prairie Cities Settlement Areas Precipitation Droughts Canadian Crops Black Hills Mennonites Plains Names Ogallala Aquifer Coronado Hudson Bay Company Plains Indians Culture Sidewalk Farmers CrazyHorseMonument



Lake Agassiz was a massive lake that at its largest extent around 13,000 years ago covered 440,000 sq km of northern America. To put this in perspective that’s much bigger than any lake in the world today and around the same size as the Black sea. Agassiz covered much of today's Manitoba, northwestern Ontario, northern Minnesota, eastern North Dakota, and Saskatchewan.

The lake was formed as a result of melting glacial ice as the last Ice Age began to end and the continental ice sheet began to retreat northwards over the US- Canadian border. The lake partially drained and refilled a number of times before the final melting of the Hudson Bay ice around 8,200 years ago, which caused almost complete drainage into the sea. It is thought that the drainage of Agassiz caused a global sea level rise of up to 2.8m (9.2ft). This massive sea level rise affected early human civilization as well as climate. Today some lakes remain as small-scattered relics of Agassiz; these include Lake Winnipeg, Lake Winnipegosis, Lake Manitoba, and Lake of the Woods.  -Matt J

Photo: @http://politicalclimate.wordpress.com/2010/03/15/the-decade-after-tomorrow/              [|Bury My Heart at Wounded Knee-Wikipedia] <span style="background-color: #ffffff; color: #333333; display: block; font-family: 'lucida grande',tahoma,verdana,arial,sans-serif; font-size: 12.8000001907349px;">[|Bury My Heart at Wounded Knee-Movie IMDB] <span style="background-color: #ffffff; color: #333333; display: block; font-family: 'lucida grande',tahoma,verdana,arial,sans-serif; font-size: 12.8000001907349px;"> <span style="background-color: #ffffff; color: #333333; display: block; font-family: 'lucida grande',tahoma,verdana,arial,sans-serif; font-size: 12.8000001907349px;">[|Bury My Heart at Wounded Knee - Watch through Amazon Prime]