Welcome to Lake America: Trump Renames Lake Ontario and Canada Is Not Amused

Can you find Lake American

WASHINGTON — There are five Great Lakes on the maps generations of Americans memorized in school: Superior, Michigan, Huron, Erie and Ontario.

Washington has now given Americans a new name to learn.

Lake America

President Donald Trump signed an executive order Thursday, August 27, directing the federal government to rename Lake Ontario “Lake America,” turning what initially sounded like another provocative presidential suggestion into official U.S. federal naming policy.

The change comes amid a worsening political and trade confrontation between the United States and Canada, making the fight over a 7,300-square-mile body of freshwater something considerably bigger than cartography.

The executive order directs the secretary of the Interior, working with the U.S. Board on Geographic Names, to take the necessary steps within 30 days to change the name in the federal Geographic Names Information System. Federal agencies, maps, documents and communications are then expected to use Lake America rather than Lake Ontario.

The National Geospatial-Intelligence Agency has already announced that it implemented the presidentially directed change in its Geographic Names Server.

Why Lake America?

The White House argues that the lake is deeply connected to American history, commerce and national security.

Trump’s order points to American military and commercial history along the lake, including Oswego and Sackets Harbor, New York, and the lake’s importance during the War of 1812. It also emphasizes the enormous economic significance of the broader Great Lakes-St. Lawrence Seaway system and America’s investment in maintaining and protecting the Great Lakes.

The administration specifically notes that the United States provides nine of the 11 icebreaking vessels operating on the Great Lakes and says the federal government has invested nearly $4 billion in protecting the Great Lakes freshwater ecosystem during the past decade.

Then there is geography.

Lake Ontario is an international lake. New York occupies its southern and eastern shores, while the Canadian province of Ontario surrounds much of its northern and western shoreline. Roughly 52% of the lake’s surface area is on the Canadian side, according to reporting by Reuters.

That creates the rather unusual prospect of two neighboring countries looking across the same water and officially calling it different things.

The United States can determine what its federal agencies call the lake. It cannot order Canada to do the same.

And Canada most certainly isn’t doing the same.

Canada Says: It’s Still Lake Ontario

Canadian Prime Minister Mark Carney quickly rejected Trump’s new terminology, pointing out that the name Ontario is far older than either the United States or Canada.

“Canadians also know that naming reality means calling it Lake Ontario — then, now and always,” Carney said.

New York Gov. Kathy Hochul isn’t adopting the new name either, declaring that New York would not call the lake Lake America.

The disagreement also carries an important historical complication. “Ontario” wasn’t invented by the Canadian government. The name traces back to Indigenous language and history centuries older than either modern nation.

Indigenous leaders have consequently objected strongly to Trump’s order. The Seneca Nation called for its reversal, arguing that replacing the historic name disregards Indigenous heritage associated with the lake.

That history makes the dispute considerably more complicated than simply replacing “Ontario” with “America” on a road atlas.

A Great Lake Becomes a Political Statement

There is also no mistaking the political context.

The order arrived during an increasingly bitter U.S.-Canada trade dispute. Trump has repeatedly criticized Canada’s trade policies and has linked his discussion of the lake’s name directly to deteriorating relations with Ontario and Canada.

It follows Trump’s earlier move to change the federal government’s designation of the Gulf of Mexico to the Gulf of America.

The Lake America order therefore fits into a larger Trump philosophy: geographic names are not merely historical labels. They can also be expressions of national identity, political priorities and American power.

Supporters will see exactly what Trump apparently wants them to see — another unapologetically patriotic assertion of American interests.

Critics see something very different: an unnecessary provocation against one of America’s closest neighbors and the removal of a centuries-old Indigenous-derived name from American government maps.

Both reactions demonstrate why the story has become much larger than the name of a lake.

What Will Hoosiers Call It?

Indiana doesn’t border Lake Ontario, but Hoosiers certainly have a stake in the Great Lakes.

Indiana is itself a Great Lakes state, with Lake Michigan supporting ports, steel production, recreation, tourism, drinking water and an enormous transportation and industrial network. The five lakes are interconnected with the St. Lawrence River to create one of the most economically important freshwater transportation systems in the world.

What happens on Lake America — or Lake Ontario, depending upon which side of the border and political argument you’re standing on — doesn’t necessarily stay there.

The more interesting question may ultimately be whether Americans actually adopt the new name.

Governments can change maps remarkably quickly. Language changes more stubbornly.

Private mapping companies aren’t necessarily required to follow Washington’s terminology. MapQuest has already publicly said it won’t change the name. Canada isn’t changing it. New York’s governor says her state isn’t changing it. Indigenous leaders want the executive order reversed.

That means Americans could soon encounter something unusual: federal documents saying Lake America, Canadian documents saying Lake Ontario, and digital maps choosing one, the other or potentially displaying both.

For hundreds of years, people looking north from New York saw Lake Ontario.

As far as the United States government is now concerned, they’re looking at Lake America.

Whether everyone else eventually calls it that is another story entirely.