Treaty No.8.
The first of the northern treaties covered an area of 324,900 sq miles and represents the most geographically extensive treaty activity undertaken. It comprises what is now the northern half of Alberta, the northeast quarter of British Columbia, the northwest corner of Saskatchewan, and the area south of Hay River and Great Slave Lake in the Northwest Territories.
(http://www.aadnc-aandc.gc.ca/eng/1100100028805/1100100028807)
Read A Historical Interpretation of The Treaty Research Report: Treaty Eight
Look At A Typed Transcript Of The Treaties Eight Text
Treaty Eight First Nations Information
- Signed at Lesser Slave Lake in 1899
- Covers portions of northern Alberta, British Columbia, Saskatchewan and part of Northwest Territories
- 24 Alberta First Nations
https://www.aadnc-aandc.gc.ca/eng/1100100020670/1100100020675#chp1