Late
Pleistocene glaciolacustrine sediments, Ashcroft, BC.
This bluff
along Thompson River just upstream of Aschroft exposes deformed silts and sands
deposited in a glacial lake at the end of the
last glaciation about 11,000
years ago. The folding is the result of melt of subjacent stagnant ice during
deglaciation. Exposures like
this provide information on the glacial
history of the Canadian Cordillera.(photo by John Clague)