Abercrombie on the map:

The Heroes was very focused in time and place, detailed, forensic almost, the ground all important – faux military history, in a sense, so the map needed to look detailed, professional and precise as well, with the positions of units added in for an extra veneer of military exactitude. This time around the story is taking place in an expanse of largely unmapped, scarcely settled wilderness so it made sense that the map be much rougher, less accurate-seeming, more woolly and suggestive without too much worry over blank spaces, a drawn on the back of a beermat by a fella with a big beard sense.