Subsequently...

This project led to many other projects springing up along the perimeter bridge. I started on a castle that is all up in the air, with different rooms, like a snow room, which stretches into a snow biome, and a lava pool on a glass floor, and an obsidian room which took forever.

Then I started up on a quarry to gather blocks, while simultaneously making a fairly interesting location.

Then I decided that I would dig a tunnel with tracks from one earth clearing location to the far north-west, to my quarry in the far south-east. This was a pretty big project in itself. It's a mine shaft, known as a drift, separated by a row of pillars.