Oregon Revised Statutes Counties and County Officers § 201.150

(1) Beginning at the southwest corner of Umpqua County; thence running due east to the northwest corner of Douglas County; thence southerly along the western boundary line of Douglas County to the southwest corner of such county; thence easterly along the southern boundary of Douglas County to the southeast corner thereof; thence in a southeast direction to the eastern extremity of Rogue River Valley; thence due south to the boundary line between Oregon and California; thence due west along such boundary line to the Pacific coast; thence northerly along the coast to the point of beginning.

(2) Beginning at the southeast corner of Douglas County; thence running due east to the one hundred and twentieth meridian of west longitude; thence due south along the boundary line between Grant and Wasco Counties to the forty-second parallel of north latitude; thence west along the forty-second parallel to the southeast corner of Jackson County; thence to the place of beginning.