I and my friend went hiking up to Duck Brook Shelter from the trailhead in Jonesville, then, came back again on the same trail. Some Trail portions are rocky, so bringing trekking poles might help.
At Jonesville town on Rt 2, there is a very small post office(Jonesville).
In front of this post office, there is a parking lot which doesn't belong to Post Office. You can park car over there and walk up to the trailhead.