Benton County is situated in the Willamette Valley of Northwestern Oregon. Benton County is bordered to the west by the heavily forested Oregon Coast Range and to the east by the Willamette River. The county includes many notable natural features such as Mary’s Peak (highest peak in Oregon’s Central Coast Range), Alesa Falls, Peavy Arboretum, and other natural features. The largest city is Corvallis and it’s home to Oregon State University.