Commencing at the intersection of the right bank of the Athabasca River and the 21st baseline; thence downstream along the right bank of the Athabasca River to the right bank of the Clearwater River at Fort McMurray; thence upstream along the right bank of the Clearwater River to the right bank the Christina River; thence upstream along the right bank of Christina River to the right bank of the Gregoire River; thence upstream along the right bank of Gregoire River to the Canadian National Railway railway line; thence southerly along the Canadian National Railway railway line to the 21st baseline; thence westerly along the 21st baseline to the point of commencement. |