President Donald Trump signed an Executive Order on Thursday directing the Department of Interior to officially rename Lake Ontario as “Lake America,” marking one of the most symbolic geographic renamings in American history.
Executive Action Targets Great Lakes Geography
The presidential directive instructs Interior Secretary Doug Burgum to implement the name change for the smallest of the five Great Lakes by surface area. Lake Ontario, which forms part of the international border between the United States and Canada, has carried its current name since French explorers adopted it from the indigenous Iroquois word meaning “great lake” in the 17th century. The Executive Order represents Trump’s latest effort to reshape American geographic landmarks with patriotic designations.
The renamed body of water spans approximately 7,340 square miles and serves as a critical shipping route connecting the Atlantic Ocean to the other Great Lakes through the St. Lawrence Seaway. New York state borders the lake’s entire southern and eastern shores, while the northern shore lies entirely within Canadian territory. The waterway supports major American cities including Rochester and Oswego, with millions of Americans living within the lake’s watershed.
International Implications and Border Questions
The unilateral renaming raises immediate questions about international protocols governing shared water bodies between sovereign nations. Canada has not indicated whether it will recognize the American designation for the portion of the lake within its territorial waters. Previous geographic renamings have typically involved bilateral agreements when borders are involved, making this Executive Order an unprecedented approach to international waterway nomenclature.
The order arrives amid broader tensions in U.S.-Canada relations, with trade disputes and border security issues dominating recent diplomatic exchanges between Washington and Ottawa. Federal agencies including the Coast Guard, Environmental Protection Agency, and Army Corps of Engineers will need to update thousands of official documents, maps, and navigation charts to reflect the new designation.
Implementation and Federal Changes
Secretary Burgum’s Interior Department must now establish procedures for implementing the name change across all federal properties, publications, and systems. The Geographic Names Information System, maintained by the U.S. Geological Survey, serves as the federal standard for geographic nomenclature and will require formal updating. State agencies in New York and other affected jurisdictions face decisions about whether to adopt the federal designation for their own mapping and educational materials.
The Executive Order continues Trump’s pattern of using presidential authority to redesignate landmarks and federal properties with names reflecting American heritage and patriotic themes. Whether “Lake America” gains widespread adoption beyond official federal usage remains unclear as local communities and international partners assess their responses to the geographic rechristening.