/ Bob & Diana McElroy / Photos / 10b-5801
ancient shoreline of the Ottawa River

(photo by Bob: 2005-11-18) 

An ancient shoreline of the Ottawa River. (Along the Deep River cross country ski trails near Balmer's Bay)

10 500 years ago, when the glaciers had receded sufficiently to allow the "Great Lakes" to drain down the Ottawa River valley, this spot would have been about 50 m underwater. 1 000 years later, the water level would have dropped sufficiently for this spot to emerge and form part of the shoreline on the abandoned river channel that flowed through Sturgeon and Maskinonge Lakes. By 5 000 years ago, the drainage of the Great Lakes had switched to the St. Lawrence River and the Ottawa River reached its modern level, about 40 m below and a kilometer and a half distant from this spot.

This photo appears on the notes page Glaciation of the Ottawa Valley

This photo appeared on The View from Point Alexander for 2005 November 29

View other photos taken at this location:  Deep River   Four Seasons Forest Sanctuary   DRXC Ski Trails   

View other photos taken on this date: 2005 November 18;    during this month: 2005 November;    during this year: 2005.