Great Lakes Toponymy & Boundary Jurisdiction Explorer

Binational Maritime Sovereignty & Renaming Simulation Engine (1909 Boundary Waters Treaty)

43 U.S.C. § 364 (US BGN) GNBC (Canada) IJC Treaty Framework
Binational Water Sovereignty Map Lake Ontario (Selected)
🇺🇸 United States Water Share: 48% 🇨🇦 Canada Water Share: 52%
US 48%
CA 52%
Bordering US States: New York Bordering Provinces: Ontario
Historical & Political Renaming Presets
Official Hydrographic Chart Divergence
NOAA Chart 14800 (US Waters)
Lake America
US Federal Print Authority Only
CHS Chart 2000 (Canadian Waters)
Lake Ontario / Lac Ontario
Official International Standard
Renaming Proposal Parameters
Four Legal Gatekeepers (Toponymic Pipeline)
1. US Domestic Authority Pass (Split)
US BGN (43 U.S.C. § 364) controls federal maps; Dept. of Interior discretion.
2. State Authority No NY Consent
NY State Committee on Geographic Names rejects unilateral toponym changes.
3. Canadian Sovereignty VETO (52% Waters)
GNBC & Ontario OGNB retain exclusive sovereign rights over northern waters.
4. 1909 Treaty & IJC Non-Binding Int'l
Boundary Waters Treaty requires bilateral harmony on shared navigational routes.
Binational Legal Assessment Dossier
UNILATERAL EXECUTIVE ACTION: NO INTERNATIONAL JURISDICTION

Because Lake Ontario contains 52% Canadian sovereign territory, unilateral US renaming has zero binding effect on Canadian waters, Canadian Hydrographic Service charts, or international maritime law. Under 43 U.S.C. § 364, the US BGN could adopt the name solely for domestic federal agencies (NOAA/USGS), creating a confusing dual-name nautical chart split at the international boundary line.

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