ORS 201.200
In addition to the boundary described in 201.200, the eastern boundary of Lane County is the summit of the Cascade Range adjacent to parts of the western boundaries of Deschutes County (see 201.090) and Klamath County (see 201.180). The northern boundary of Lane County is the southern boundaries of Linn (see 201.220), Benton (see 201.020), and Lincoln (see 201.210) Counties. The western boundary of Lane County is the Pacific Ocean.
Umpqua County, referred to in 201.200 (1), was incorporated in Douglas County in 1863.