And the last of my Ultima Maps, Serpent Isle. These were generated using the exact same process as the Ultima 7 maps, and are just as large (although they compress better to \~60 MB). Due to the patchwork nature of Serpent Isle, the exterior view doesn't provide nearly the clean view that the Ultima 7 map provides, but it is included nevertheless. I still recommend downloading for viewing and having > 2 GB of ram.
The maps are also available at VGMaps.