RIVER BASIN · FRTH
North America · shared by 2 countries
Firth basin (blue) over its riparian countries · real geometry, TFDD & Natural Earth
| 1909 | Treaty Between Great Britain and the United States relating to boundary waters and boundary questions Navigation, Water Quantity |
| 1985 | Treaty Between the Government of Canada and the Government of the United States of America Concerning Pacific Salmon Fisheries |
Source: TFDD International Freshwater Treaties Database · open in the explorer →