@Max That has been my goal too, to try and ride as much trail as possible.Since I usually ride door to door, there is a fair bit of road riding involved.Over the years I have been able to connect all kinds of short trail sections which would be impossible to describe.
I would say if you start at Seymour, park at Hyannis or Bottom of Seymour that will be all trail up to the power lines. Pick a trail from there something like Forever After, Severdick. Drop down to Seymour river. The destruction of Twin Bridges really hurt the ride.Which was a quick climb up to Fromme. Now I ride down to the pool 99 area cross a bridge and hike a bike up a set of stairs to a new trail that is being worked on. Ride trail up to Demo forest.Drop to Lynn Valley and road ride up to Fromme.