Go to the Mountains!
Get out of the Willamette Valley (Willamette is the Indian word for 'death'). It's much more beautiful in the nearby mountains!
There are some nice trails up by Santiam Pass on Hwy. 20. (Drive east on 20 out of Albany, through Lebanon and Sweet Home.) I did a day hike up to Square Lake in this area. In October, the trees are colorful up there.