Can you access the Grove of the Patriarchs in the winter? The access road, Highway 123, is closed at the park boundary. The only way to access the Grove is to either walk up the closed road to the Stevens Canyon entrance or take the Silver Falls Trail from Ohanapecosh to the falls. Until the spring opening, that’s the only access. For more information on this popular trail click here and for more information on the surrounding area contact the team at Destination Packwood.