The South Fork Breitenbush River flows near the worker-owned co-op surrounded by what national landmark?
South Fork Breitenbush River:  The river flows generally northwest from Russell Lake in the Mount Jefferson Wilderness of the Cascade Range to near Breitenbush Hot Springs, where it merges with the North Fork Breitenbush River to form the main stem. Breitenbush Hot Springs: Breitenbush Hot Springs Retreat and Conference Center (pronunciation: BRIGHT en BUSH), commonly called Breitenbush Hot Springs or simply Breitenbush, is a worker-owned co-op featuring holistic and spiritual retreats. Breitenbush Hot Springs:  It is surrounded by the Willamette National Forest in Breitenbush, Marion County, Oregon, United States, 10 mi east-northeast of Detroit along the West Cascades Scenic Byway and 12 mi northwest of Mount Jefferson.
Willamette National Forest