Calapooya Mountains

The Calapooya Mountains and the Calapooya Divide are two parts of a spur of the Western Cascade mountains in the U.S. state of Oregon that form the divide between the watersheds of the Willamette and Umpqua rivers. At its southeastern end, the spur joins the Cascade Range near Cowhorn Mountain near the headwaters of the Middle Fork Willamette River and the North Umpqua River. A topographic map in the Atlas of Oregon shows the Calapooya Mountains curving northwest from near Potter, McGowan, and Balm mountains past Bohemia Mountain to Holland Point, south of Oakridge.

From near Bohemia Mountain, a block of mountains connected to the Calapooya Mountains runs due west along the border between Lane and Douglas counties to the vicinity of Interstate 5 (I-5) near Rice Hill. This block is known as the Calapooya Divide. To the north along I-5 are Cottage Grove and Eugene and to the south are Sutherlin and Roseburg