Manor Road
Rating: Moderate 
A former logging road, but mostly just loose rock in most sections. Runs North-South and connects the Lower Connector with the Power Lines road, then up to Canterbury and some of the upper trails. Some sections (lower particularly) are very overgrown.
Google Maps Link: https://www.google.com/maps/d/u/0/edit?mid=1D-CqQVNYKDUwzuyNhpholI0KWqJ_8Ec1&ll=49.25287684673481%2C-122.48997621203381&z=15
Youtube links: