Both of these areas are administered by OSU and are popular with dog walkers. Peavy Arboretum has several interpretive trails that wind through 40 acres of forest. You can continue into McDonald State Forest, a research forest with several miles of hiking and mountain-bike trails. From Corvallis, take Hwy 99W north for about 5 miles, then turn left at Arboretum Rd and go almost a mile.
