ORS 201.220
In addition to the boundary described in 201.220, the eastern boundary of Linn County is the summit of the Cascade Range adjacent to parts of the western boundaries of Deschutes (see 201.090) and Jefferson (see 201.160) Counties. The northern boundary of Linn County is the southern boundary of Marion County (see 201.240). The western boundary of Linn County is the Willamette River adjacent to parts of the eastern boundaries of Benton (see 201.020) and Polk (see 201.270) Counties.
For description of area removed from Linn County and annexed to Lane County, see 201.200.