[KegRiver]

I hauled logs out of that WMU for a few years, and know a couple of trappers in that WMU.

Much of the WMU is high ground. But it depends on where exactly this line is.
There is some low ground and if it;s in one of those areas it could be good for beaver. Fur populations cycle so I can't tell you what the populations are like now. I haven't been out that way for a few years.

The burn is on the east border of the WMU. Most of the logging was done further west, in higher country.
There is also a lot of oilfield activity throughout the WMU. That means easy access to those areas and with that comes stolen equipment and habituated animals, including Grizzly Bears.

Much of the area was some of the better trapping in the Peace district. I don't know if it still is. I do know the Moose populations out that way have taken a beating in recent years and that despite logging producing a lot of good Moose habitat and poor fur habitat.

One other thing to consider. You would be a long way from supply sources and very likely have no communication with the rest of the world. No cell service in much of the WMU. And local prices can be high for the little that is available.
In other words the living conditions may be rather pioneer.

If you are into rugged conditions and remote locations it may be just what you are looking for. Hunting season notwithstanding. Then the area is like grande central station on a Saturday afternoon.

Almost forgot. A tracked side by side would be perfect early in the trapping season but pretty much useless late in the winter. It's bush country and gets plenty of snow. By mid January the snow will likely be too deep for effective travel with any side by side, tracked or not.

A skidoo is a better choice. Something small and light, like Bravo or Tundra.

You will get stuck and if you can't manhandle your machine you are in big trouble.