W0C/SJ-134 near Pagosa Springs, CO From US 84 in Pagosa, drive south on US 84 about 8 mi. to Blanco Basin Rd. Drive east on that about 7 mi. to 37.20663, -106.83933 to FR 656. From there follow the dirt road about 2.3 mi. to nearest approach to Blue Mtn. The off-trail section looks like about 0.4 mi.