This is another map for which Gribbly is to thank. They were wondering about a lunar map at two different points in time, one with a mining facility on it, and one some years later, once the facility has been abandoned. So, here you are.
Over the intervening years, there have been more asteroid strikes on the surface, resulting in some new craters, and, while the main facility has been abandoned (and partially destroyed), there are two further facilities (which may in turn have been abandoned).
64x51 Ostia Base v1(click to enlarge)
64x51 Ostia Base v2(click to enlarge)
Hope that folk like it. In the meantime, I'm off to update some of my older maps, thanks to the addition of a Fluff graphic option I'd been hoping for for some time.