https://maps.simcoe.ca/public/

Thousands of acres of county forest in the area, and most are open enough to make your own trail if the access roads are trampled. There are some nice tracts north on Bayfield around Gill and Horseshoe Valley Roads.

In most tracts, motorized vehicles are prohibited - the map legend will indicate which ones allow vehicles,  but usually they are restricted to the actual syndicated snowmobile trails. Most of the larger tracts have dozens of side trails that are seldom used, and many of the hilly forests are open enough to hike off trail.
Bowhunting for deer closes on December 31, but most hunters have stopped hunting by now and most of the deer moved to the low lying winter yards over the last week or two. Bow hunters are seldom a threat.  Small game season is still open, but again, I hunt/hike/snowshoe a lot of the forests in this area and I have never run into another small game hunter.
I know these forests really well so feel free to message me if you want specific recommendations.

Barbara wrote:

Copeland Forest
http://www.ontariotrails.on.ca/trails/view/copeland-forest-trailsBarbara

Added to the list. Thank you.