Oregon Revised Statutes Counties and County Officers § 201.320

(1) Commencing at the northeast corner of the state; thence west on the state line to the east boundary of Umatilla County; thence south on the east boundary of Umatilla County to the first standard parallel north of the Willamette Base Line; thence east to the northwest corner township 4 north, range 41 east, Willamette Meridian; thence south six miles to the southwest corner township 4 north, range 41 east, Willamette Meridian; thence west two miles to the northwest corner section 2, township 3 north, range 40 east, Willamette Meridian; thence south six miles to the southwest corner section 35, township 3 north, range 40 east, Willamette Meridian; thence east one mile to the southeast corner section 35; thence south two miles to the southwest corner section 12, township 2 north, range 40 east, Willamette Meridian; thence east one mile to the southeast corner section 12; thence south three miles to the southwest corner section 30, township 2 north, range 41 east, Willamette Meridian; thence east one mile to the southeast corner of section 30; thence south seven miles to the southwest corner section 32, township 1 north, range 41 east, Willamette Meridian; thence east two miles to the southeast corner section 33, township 1 north, range 41 east, Willamette Meridian; thence south six miles to the southwest corner section 34, township 1 south, range 41 east, Willamette Meridian; thence east one mile to the southeast corner section 34; thence south four miles to the southwest corner section 23, township 2 south, range 41 east, Willamette Meridian; thence east one mile to the southwest corner section 24, township 2 south, range 41 east, Willamette Meridian; thence south two miles to the southwest corner section 36, township 2 south, range 41 east, Willamette Meridian; thence east three miles to southeast corner section 32, township 2 south, range 42 east, Willamette Meridian; thence south two miles to the southwest corner section 9, township 3 south, range 42 east, Willamette Meridian; thence east one mile to the southeast corner of such section line; thence south one mile to the southwest corner section 15, township 3 south, range 42 east, Willamette Meridian; thence east one mile to the southeast corner section 15; thence south two miles to the southwest corner section 26, township 3 south, range 42 east, Willamette Meridian; thence east one mile to the southwest corner section 25, township 3 south, range 42 east, Willamette Meridian; thence south four miles to the southwest corner section 13, township 4 south, range 42 east, Willamette Meridian; thence east two miles to the southeast corner section 18, township 4 south, range 43 east, Willamette Meridian; thence south three miles to the northwest corner section 5, township 5 south, range 43 east, Willamette Meridian; thence east 11 miles to the southeast corner, township 4 south, range 44 east, Willamette Meridian; thence south six miles to the southeast corner, township 5 south, range 44 east, Willamette Meridian, a point on first standard parallel south of the Willamette Base Line; thence east to the east boundary of the state; thence northerly along the east boundary of the state to the place of beginning.

(2) The western and southern boundaries of Wallowa County established by subsection (1) of this section are the eastern and northern boundaries of the adjacent counties.