The good news about escorts in Thunder Bay is that the rates are very low, generally $100/hr. plus transportation ($20 to $30). The bad news is that it's very hit-and-miss.
Those rates haven't changed for close to 20 years, and the lady's share of the $100 fee (I'm guessing $60) isn't much of an incentive to provide great service, or even work in Thunder Bay at all. You cum, and the "hour" is usually over, even if it only actually took 15 minutes.
The local newspaper, the Chronicle-Journal, has a lot of escort classifieds. I haven't been there for close to a year, but your best bet is to call several and ask for descriptions. Then, go with your gut. It won't always be right, but there's no source of reliable information. Canbest used to have a little info, but we all know what happened to it. There's not much on TERB, and there's nothing at all on The Erotic Review because none of the ladies or services have web pages. My last two experiences there were passible, but no more.
The going rate in Sault Ste. Marie is $150/hr., transportation included. The level of service is usually better than in Thunder Bay. I've seen three escorts in the past three years. Two were quite good, one was OK; none were outstanding.