“The long outside loop of the Mansfield Forest.
— Luke Mattar
The Mansfield Forest is a dense, mixed network with all sorts of trails, from wide dirt road down to sweet ribbons of singletrack. This particular loop is one of the longest all-singletrack routes around the park, it stays off the wide trails almost completely.
No facilities at the trailhead. Timber harvests are ongoing, you may run into some activity or closures. Most obstacles can be routed around; many of the forest roads run like a grid.
This route can be ridden in both directions. The counterclockwise loop hits all the stunt lines in the correct direction, and the downhills tend to be long and swoopy. However, some of the climbs are a real grunt, particularly near the end of the loop.
If you reverse the loop direction, you get more gradual climbs and steep, short descents that are a little less flowing, but it still works out.
The Mansfield Forest is on the Oak Ridges Moraine, with sandy, well-drained soils. These trails tend to be better to ride in the shoulder seasons or during damp weather, or after freezes. In summer, the trail can be a bit blown out and loose.
The trail is largely easy to see and follow, but several of the turns seem to be the "wrong way" according to your trail senses; the most important one is marked on the map.
Once you get off the Mansfield 13k Loop, the back sections can tend to be a bit rustic. Riders may see downed branches or leaves on the trails, these get a little less traffic. The trail may be downright hard to see if covered in freshly fallen leaves.
Don't forget to save your climbing legs until the end. Some of the steepest uphills are late in the ride.
The Mansfield Forest is located in the Dufferin and Simcoe County Forests.