Finished converting the B1 The Keep on the Borderlands map of the Caves of Chaos to a tile map based representation.
To make the map playable in the DND1 engine, I needed to connect the higher up caves back down into the valley. You can see the long passage running along the bottom of the map to get to Caves K and J, for example.
I might tweak the map again to make things align more but for now it is very serviceable.