Donnahue Creek (Larch Mountain Corridor AKA: OSK's field)
From Portland: Take I-84 East to Troutdale Exit 17, follow the frontage road, turn Right after the Flying-J (Light) onto 257th Drive. Follow about about a mile and a half to Stark St. and take a left. After crossing the Stark Street Bridge turn right. This will put you on Historic Columbia River Highway. Continue on past Corbett. Shortly after "Portland Women's Forum" take a right onto Larch Mountain Road. Lower Field is near Mile marker 6, Upper field is at or about marker 8.
Note: Corbett Hill road from I-84 is closed until June 15th 2007