OK, we'll see where this goes. It's going to be a dual hemisphere stereographic map of Mars as colonized by the British Empire under Queen Victoria.

So far I've begun tracing over some Equidistant Cylindrical martian texture maps in QuantumGIS. Given the nature of the map as a bit of pseudovictorian fantasy, I'm not going to be to persnickety about getting canals flowing along the DEM correctly or putting the right terrain in the right places. I'll just use our modern knowledge of areography as a rough template.

### Latest WIP ###
Click image for larger version.  Name: mars.png  Views: 325  Size: 106.4 KB  ID: 36268

In case you were wondering what I mean by "dual hemisphere stereographic map" I mean something like this:
Click image for larger version.  Name: stereo-graticule.png  Views: 114  Size: 40.2 KB  ID: 36269