Eramosa River

Eramosa River
Flooded Eramosa River in Guelph in early spring
Location
CountryCanada
ProvinceOntario
Physical characteristics
Source 
  locationnear Erin, Ontario
Mouth 
  location
Speed River at Guelph, Ontario

The Eramosa River is a river in Wellington County in southwestern Ontario which rises near Erin, Ontario, and flows southwest through the city of Guelph, where it joins the Speed River, which then enters the Grand River in Cambridge. The river is believed to derive its name from the Mississauga word um-ne-mo-sah, meaning "black dog" or "dead dog".