thumb|An 1890 map of the ancient Laurentian River
The Southern Laurentian Channel is an ancient underground river in southern Ontario, Canada.
The river predates the recent ice ages. approximately away.
In 2003 it was discovered that the southern section of the Laurentian aquifer reaches under High Park in Toronto, Ontario, Canada.
See also
- List of rivers of Ontario
- Laurentian Channel
References
External links
- Reuters article, about the recent discovery of the aquifer, archived at a water conservation site.