Sharing waters originating in and/or flowing through the Province of Alberta is governed by three water sharing agreements:

• 1909 Boundary Waters Treaty
  between Great Britain and the United States of America, which outlines the division of the waters of the St. Mary and Milk River.
• 1969 Master Agreement On Apportionment
  between Alberta, Saskatchewan and Manitoba which outlines the division of waters of eastward flowing interprovincial streams.
• 1997 Mackenzie River Basin Transboundary Waters Master Agreement
  between British Columbia, Alberta, Saskatchewan, the Northwest Territories and the Yukon Territory, which outlines the principles for co-operative water management of the waters of the Mackenzie River.

Use the links or the main menu on the left to learn more about these agreements.