| Disputed rock | |
|---|---|
 Canadian navigation aid on North Rock | |
 | |
| Geography | |
| Location | border of the Bay of Fundy and the Gulf of Maine |
| Coordinates | 44°32′16″N 67°5′13″W / 44.53778°N 67.08694°W |
| Administration | |
Canada | |
| Province | New Brunswick |
| Claimed by | |
Canada | |
| Province | New Brunswick |
United States | |
| State | Maine |
| Demographics | |
| Population | 0 |
North Rock (French: Roche North) is an offshore rock near the boundary between the Gulf of Maine and the Bay of Fundy east of the North American continent. Its ownership is disputed between the Canadian province of New Brunswick and the U.S. state of Maine as part of the territorial and maritime boundary dispute surrounding Machias Seal Island nearby to the south. The disputed area is referred to colloquially as the "Grey Zone".[1]