Failed expedition, or learning opportunity? Under biked on 40c tires, I discovered my route, assembled here on Rw/GPS, included some old mule paths that hadn't been passable in many decades. I hikeabiked a bit, before realizing I had over a mile to go through large shrubs and hidden, pointy, baby-head rock garden. I backed out and resumed on the more manageable road, which eventually linked back up to my route, before the route calling for turning sharp onto what seemed to be a nonexistent path. Rather than continue on without being able to see what road I was following, crossing over more downed trees and stretches saturated with springwater, I opted to ride back to basecamp. 650B with some 2" tires would be more ideal for this terrain. Very rough road in parts. Fast descent on the way back. The road I turned back from is potentially viable to link to something northbound, to link up to the BIA 288/Pine Crk. Road, that traverses east-west on the north side of the Simcoe range.