Under the supervision of NPS Ranger Larry Chirico, SMMTC and CORBA worked together with CSUCI students to repair Backbone trail damage from the Woolsey Fire and subsequent flooding. Met at the trailhead on Mulholland Hwy. Explained project objective, did safety talk, broke into teams and assigned tools. Hiked up to various points needing work. Group members collected rocks and boulders to create rock work around newly installed metal culverts; cleaned existing drains or installed new drains; and created rock walls to shore up collapsing areas of the trail. Returned to meeting place early due to unusually hot weather. Total volunteer hours: 21 Volunteers x 4 hours = 84 hours Feet of trail maintained: 5, 808