The Mt. Hood National Forest says after weeks of work, most trails outside of wilderness on the Zigzag Ranger District have been cleared of fallen logs, but visitors should continue to be aware of existing hazards such as fallen trees, hanging branches, loose rocks, and unstable slopes.  The western side of the Forest suffered extensive damage as the result of the Labor Day windstorm that brought down trees and fueled wildfires.  Numerous trails in the Mt. Hood Wilderness remain blocked or damaged.  The Timberline Trail and Pacific Crest Trail were hit particularly hard by the windstorm, with thousands of trees still down on the trails.  Zigzag District Ranger Bill Westbrook said crews have been working to clear trails, but with winter weather approaching many areas will be not cleared until late spring or summer.  Some recreation areas are open to hikers, as well as other non-motorized use, but are gated and remain closed to vehicles, including Trillium Lake and Old Maid Flat.  Campgrounds on the Forest are closed for the season.