Deadfall is a major concern for that area I think.
The north shore seems to git it's share of ice storms, and - maybe deadfall aint the biggest issue, but down sapplings anyway.
If you have longtracks and want to go play, you could ride out of Terrace Bay in a few directions (not South) and maybe get a ways.
Depending on how much snow they have. Some years a lot, some years hardly any - as they are on the wrong side of the lake for any lake effect. (usually)
There is a million loony bridge yonder that should see a skdoo at some point again one day...
Even when the trail system was in place over there, it still never went west of Nippigon as Thunder Bay is a black hole for trail support, and has been that way all along.