Nice simple yet elegant plans for a mining colony on a planet, moon or large asteroid - somewhere without an atmosphere, or at best with one that's unbreathable. The base exists on two levels (more if you decide to add in bits of DramaScape's Space Station blueprints) with a small surface presence and more extensive tunnels underground.
What's nice is the amount of background information provided. Naturally, you can discard any of it that does not suit your requirements but there's a lot of useful stuff about the importance of the atmospheric processing plant and the hydroponics facility and a neat sketch map - suitable for a player hand-out - giving an overview of the layout.
As for the full blueprints, they come as multipage versions with square or hex grid (or none) that you need to print out and assemble and as giant JPEGs for virtual tabletops, poster-scale printers or those who want to edit the plans in a graphics package before use. The single-sheet images come without any grid.
Whether you're planning a claustrophobic Aliens-style game, a passing visit to a mining colony, an artefact hunt or any other plot that includes mining or excavating activities, this could prove very useful.