McDonald-Dunn Forest

McDonald-Dunn Research Forest is located a short 15 minute drive north of the OSU campus. Because of its proximity to campus, this Forest is extensively used for university instruction and research. Four distinct forest management themes, even-aged, two-storied and uneven-aged, plus reserved old-growth stands, allow side-by-side comparisons of the effects of implementing these themes. The Forest's non-motorized recreation opportunities in close proximity to the Corvallis community result in over 175,000 non-motorized recreation visits each year, another researchable opportunity. Peavy Arboretum is being developed to provide examples of all of the major eco-zones found in Oregon. The College Forests offices are located at the Arboretum.

Instructions for opening the forest gates can be found here.


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Site Description and History

Acquisition of the McDonald-Dunn Forest

The McDonald-Dunn Research Forest consists of approximately 11,250 acres of predominantly forested land on the western edge of the Willamette Valley in Oregon, and on the eastern foothills of the Coast Range.

The Forest is in Townships 10 and 11 South, and Range 5 West, Willamette Meridian. It lies west of U.S. Highway 99 just to the north of Corvallis. The forest occupies a ridge system that projects eastward into the Willamette Valley. In general, the streams and ridges extend northwest and southeast from the main ridge. The Forest is somewhat isolated topographically from the rest of the Oregon Coast Range, residing in the rain shadow created by it. McDonald-Dunn Forest is in the "Valley Margin Zone" as defined by Juday.