What I love about these is I can get a much better feel for the vegetation and the amount of settlement. Dark green is forest (mainly pine), light green is mixed oak, pine, and grassland, yellow is either rich grassland or SPECIAL (in the case of the Print). White is grassland or cultivated lands.
If you look carefully, the scale is in the lower right corner of the Sartar map. Of course on my originals, these are all 1 cm=4 km.
Making these huge detailed maps really has helped me visualise Glorantha far better:
I have tribal overlays for Sartar and Heortland on this as well. And am really tempted to do a Cults Overlay if I can figure out how I want to display that.
I have done the same with Prax, but there is little sense for tribal overlays as the Praxian tribes are nomadic.