One man is dead after an early morning head-on collision between two commercial trucks on Highway 97 in Sherman County. The Oregon State Police says the accident occurred shortly after 3 a.m. Friday near milepost 30. A preliminary investigation shows a truck pulling a box trailer and driven by 33-year-old Vernon Garren of Sacramento was traveling northbound and passing another large commercial truck when it crashed head-on with a southbound truck pulling double tanker trailers. The driver of that truck. 49-year-old Ronald Dwayne Whiz of Wapato, was pronounced deceased at the scene. Garren and his passenger were taken by ambulance to Mid-Columbia Medical Center in The Dalles for treatment of non-life threatening injuries. Highway 97 was shut down for three hours due to accident. The OSP says the investigation is on-going.