I didn't make the road. But I had to mine my way out when my mule and I fell down the chasm.

Was on a joy ride around the map and saw the castle ahead but not the chasm below. Thankfully the mule and I only fell to the ledge part way down. Unfortunately when I dismounted I fell to the bottom and then whilst leaking hearts from the fall got rumbled by zombies and a spider.

So to get out I needed a safe room, a bridge and a large stairway for the mule. I explored the castle and have left the mule tied up by a gate for now. I will make a safe route out to my village with bridges and the like but will backfill the chasm stairway and bridge on the way out. I'll create a lit path outside the fence line and bridges from there.

Awesome castle.