Searchers continue to look for a 27-year-old Bend man who was reported missing on Mt. Hood on Tuesday.  According to the Hood River County Sheriff’s Office, aircraft on Wednesday evening located a tent believed to belong to Austin Mishler at about the 8700-foot level on Mt. Hood’s north side, but searchers that reached it this morning found it to be empty.  Mishler is described as an experienced climber and wilderness guide, and was reported to be camping on the mountain Monday night and climbing in the Eliot Glacier area on Tuesday, and was supposed to return home Tuesday night.  Aircraft and ground searchers are being coordinated by The Hood River County Sheriff’s Office with assistance from the Clackamas County Sheriff’s Office.  Search teams consist of crews from the Crag Rats, Portland Mountain Rescue and communications assistance from Mountain Wave Search and Rescue, with members of the Oregon Air National Guard 125th Special Tactics Squadron and Air Force 304th Rescue Squadron involved as well.  The search base is at Cloud Cap on the north side of Mt Hood, and the public is asked to stay clear of this area to allow searchers access in and out of the base.  Entrance will be regulated from the Tilly Jane Trailhead near Cooper Spur Ski Area.