Lake Timiskaming
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Lake Timiskaming (French: Lac Témiscamingue) is a large freshwater lake on the provincial border between Ontario and Quebec, Canada. The lake, which forms part of the Ottawa River, is 110 km in length and covers an area of almost 295 square kilometres. While the water level is only 176 m above sea-level, the lake is in places up to 216m deep ( 700ft). There are several islands on the lake, notably Mann and du Collège islands.
The name is from the Algonquin Temikami or Temikaming, meaning "deep waters".
The lake and surrounding area are popular for outdoor recreation. In June 11, 1978, 12 children and 1 Volunteer from St John's School of Ontario (defunct), Toronto died of Hypothermia, when their canoes capsized on a school canoe trip.
[edit] Lake Timiskaming Rift Valley
Lake Timiskaming is centered on a major rift valley that extends several hundred miles to the north-east. There have been recent earthquakes along the rift valley, the most recent being in 2000. There are numerous faults in the area and has produced cliffs such as Devil's Rock, just 3 miles south of Haileybury and is dated to be 2,220 million years old. There are known kimberlite pipes within the rift valley that are considered to be diamondiferous.