I live about 30 miles from the area you will be visiting. You won't have any luck in the bars in the area. There is a strip club in Portland, about 30 miles south. Your best bet would be using a verified provider that advertises on Date-Check or TER. Backpage has some success, but there was an arrest today of a guy that murdered an escort advertising on backpage, so I would steer clear of that for awhile.
Good luck, be safe.