A motorcyclist was injured in a one-car accident on Highway 14 in Klickitat County on Monday afternoon.  According to the Washington State Patrol…63-year-old Donald Janssen of Sequim, Iowa was westbound on Highway 14 at milepost 77 east of Lyle when he struck a rock.  Janssen was injured and taken to Mid-Columbia Medical Center in The Dalles.  The WSP says he was wearing a helmet.  The accident occurred just before 3 p.m. on Monday.