The Skamania County Sheriff’s Office says they are looking for a 30-year-old Portland man who went missing Friday from a family residence along the Washougal River.  According to the Sheriff’s Office, Blake Strong’s orange floating device was found along the river, but he was not located.  An initial investigation revealed Strong had sustained an injury the prior day while recreating in the area and had secreted his pack, containing camping equipment, along the riverbank.  There was some indication he wanted to retrieve the pack after being released from the hospital.  He is under the care of a physician and requires daily medication.  A witness came forward and reported seeing Strong walking west, in the Washougal River, wearing a green pack on the day he was reported missing.  He may have also been seen walking down the Washougal River Road in Clark County.  Blake Strong is described as 5’10″ tall, weighing 170 lbs., with blue eyes, strawberry blonde hair, and a beard.  He was last seen wearing large green backpack, light colored khaki shorts, black hat and hiking boots.  He may also have a blue “puffy” style jacket or a bright blue zip up hoodie.  Anyone with information as to his whereabouts is asked to contact the Skamania County Sheriff’s Office at 509-427-9490 or your local authorities.