There once was a Map thread on the old forums, with some neat maps by lots of cool and capable people.
Unfortunately, it appears that I’m the last man standing. So I’m going to use this thread to dump all the junk I make as the Gridmap slowly crawls towards completion. The most full version (not always up to date) in a full sized PNG is here.
The Gridmap is available as an XCF file for editing, using and distributing, although I’m holding off an “official” release until it’s complete-ish or at least has most of the city placements for TR done. If you want it in its unfinished state, tell me. If you want to use any of these maps as basis for an edit, go ahead, upload and distribute at your leisure.
I hope it inspires someone to do some mapping for TR or PC.
Not quite the Gridmap, but it uses the same basis for off-continent island placement that the Gridmap does (the base map was done by Lady_N). The Imgur album includes links to the sources.