18 hikers: 6 hiked 5 miles and 12 hiked the 10. Got lost during the 1st 2.5 mile "lollipop loop"; walked a dirt road "the last unknown miles" when OLLI CAME TO THE RESCUE...with .6 miles remaining on this dirt road, a passing dirt biker while avoiding a large root in the road ended up going over his handlebars in front of us hikers. Injured & on the ground...former nurses Delia and Vicky tended to the rider, Matt. Delia called his mom. Meanwhile, runner Floyd ran back to John T's pick up truck and returned to the scene of the accident. Matt was helped into John's van, who along with Vicky, drove to the hospital (followed in a car driven by Gary). Later, Mary received a text from Matt's mom indicating her son had a dislocated shoulder, a brusied knee, and a concussion, and she thanked us for the help we gave her son....Well done Olli hikers....