Note: In addition to the boundary described in 201.100, the western boundary of Douglas County is in part the eastern boundary of Coos County (see 201.060) and in part the Pacific Ocean. The northern boundary of Douglas County is the southern boundary of Lane County (see 201.200). The western boundary of Douglas County is the summit of the Cascade Range adjacent to a part of the western boundary of Klamath County (see 201.180).