In view of difficulty in establishing definite and identifiable boundaries to the League's area, the following description is advisory only and interpretation is at the discretion of the Management Committee.
From Wensley, through Coverdale to Kettlewell, from there following the course of the River Wharfe to Bolton Abbey (including Bolton Abbey itself).
From Bolton Abbey, continuing with the course of the River Wharfe (including Arthington) to the point where it meets the A64 at Tadcaster.
From Tadcaster, the route of the A64 to the point where it meets the A1237. The route of the A 1237 to the point where it meets the A19. The route of the A19 to a point level with Thornton le Beans.
An imaginary line drawn East to West from the point level with Thornton le Beans to a point immediately North of Wensley.