On Saturday, we enjoyed a quiet walk on the 1600' high, remarkable flat CCC Plateau, located at the base of Green Mountain in the Mid-Fork area. The CCC Plateau was formed during the last Ice Age by rivers pouring clay, gravel, and sand into a glacial lake covering the North Bend area. Nearby Grouse Ridge, with its big gravel mine, is of the same origin. Now the CCC Plateau is a peaceful and little visited spot even on weekends (except when the DNR is doing a logging operation, which is not often). The area is now snow free, too, which is something a little hard to find right now in the Cascades.
We followed a three mile loop of old logging roads that circles most of the plateau. It's an unexciting place offering only limited peeks at the surrounding Mid Fork mountains, but perfect for an easy peaceful stroll. The logging road closer to Green Mountain is little-driven and carpeted with moss and grass. Last time I tried this route, the logging road was blocked with blowdown, but since then the road has been maintained and it is easy going.
The tricky part of the hike is getting to the CCC Plateau. The quickest way is to ignore all of the unfriendly signs and drive to the DNR gate at the end of the Mt. Si road, but limited parking and hostile neighbors makes this problematic. Or you can park at the Mt. Teneriffe bus turnaround and walk the same road to the DNR gate, adding another mile to the hike. Another possible access point is the Bessemer Mountain Road. Park at the gate by the Mid Fork Road, hike up the Bessemer Road to the CCC road junction, then follow that path west to the Plateau.