Abstract: At 4:30 a.m. on October 17, 2017, an employee, working as a fire fighter, and coworkers were performing hand line clearance in support of a hose lay operation during a wildland forest fire evacuation. The work crew was evacuating the area to their second designated escape route a (dry creek bed) due to rollouts and fire backing down the mountainside. The employee and coworkers were walking down a dark steep hillside. The employee and coworkers walked over the open side of a cliff that was approximately 50 feet high and landed on the ground and a boulder. The employee sustained facial trauma, fractured forearm, and lacerations. The coworkers also fell but did not received serious injuries. The employee was transported to Stanford Hospital.