From the top of Horseman and neighboring routes, wander down and right back towards the cliff top. Find the stream bed, and follow it down and back to where you are cliffed-out by a 5' boulder.
From the top of Ken's Crack and routes further right, follow trails along the clifftop back towards the Uberfall. These trails will lead you to a stream bed; after crossing it, you'll be on top of Ken's Crack and Boston. Keep moving to climber's left until you are cliffed-out by a boulder.
Next: squeeze behind the 5' boulder, and have a seat. Scootch left, to a good stance at a giant horizontal tree root - this is how you'll know you're in the right place. Scamper down and left on buckets and ledges, to the carriage road.
Location
The Uberfall descent lands you just to the left of Trashcan Overhang, scant seconds back to your packs.
Protection
You may want to use climbing shoes for the first trip down, but approach shoes are usually fine.