Depending on the amount of snow, most, if not all the whitetails will be in the valley (all private).
But there may be some mulies still up in the hills, again dependent on snow amounts.
Take a look up towards Noman Nose (west of Bonners) for some public land, its the only part of that area I know but it carries bucks until the snow is chest high.
A snowmobile or good quad would be a good idea to cover that winter wonderland.
Good luck