Ice + water
Shaped by a retreating glacier.
The present basin was carved and reshaped during the last ice age. As the ice retreated, an earlier and larger body known as Lake Iroquois left shorelines that can still be traced above today’s lake.1
The water behind the goods
Our lake has always carried stories.
Before skylines and shipping lanes, Lake Ontario was—and remains—a living waterway, a meeting place, and a source of identity.
Lake Ontario · Eastern Great Lake
Smallest in surface area. Immense in influence.
Fed primarily by the Niagara River and flowing east through the St. Lawrence River, Lake Ontario is the final Great Lake before the Atlantic. Its shore connects communities across Ontario and New York—and its water has shaped settlement, trade, recreation, food, weather, and daily life for generations.1
A name with deep roots
Ontario began with the lake.
The name is generally traced to the Wendat word Ontarí’io, translated in several ways, including “beautiful lake” and “great lake.” Long before the province carried the name, the water did.1
A meeting place
People have gathered here for millennia.
Archaeological evidence places people in the Lake Ontario region roughly 11,000 years ago. The lake and its tributaries remain deeply connected to the histories of the Wendat, Haudenosaunee, Ojibwe and other Indigenous peoples.1
Routes + communities
Trade, travel and towns followed the shore.
European trading posts appeared around the lake in the 1600s and 1700s. Kingston, Toronto, Hamilton, Rochester and other communities grew around strategic harbours, while the War of 1812 made control of the waterway especially consequential.1
Connected waters
From the Great Lakes to the Atlantic.
Canals and the St. Lawrence Seaway connected Lake Ontario to the upper Great Lakes and the ocean. Today it remains both a working waterway and a place for swimming, paddling, fishing, sailing and shoreline life.1
The story continues
Wear the lake. Respect the lake. Keep its stories moving.
Shop Lake Ontario GoodsSources
- Lake Ontario — geographic, naming and human-history overview. Supporting links within the article lead to archaeological, historical and waterway references.
This is a concise public history, not a complete account. We welcome corrections and additional community perspectives.