There are volunteer groups that do a large percentage of the trail maintenance in some areas. There is the Pacific Crest Trail Association with their local chap

There are volunteer groups that do a large percentage of the trail maintenance in some areas. There is the Pacific Crest Trail Association with their local chapters. In Washington state, there is the Washington Trails association. In Oregon, there is Trailkeepers of Oregon, who I volunteer with almost every weekend. There are also numerous local groups across the western US.