This tutorial covers my entire process for how to draw a map - from start to finish. Here I'm illustrating a town map, but the steps apply to any map.
Peter Boehme · Sketches + works in progress
Azeroth WarCraft 1
b18c9269c0cc68adf9f8dbc1e2aaf023.jpg 1,000×1,000 pixels
Rasfalia by MaximePLASSE.deviantart.com on @DeviantArt
More stylized. This is kind of what I'm looking for, I just need to find a way to translate the symbolic rendering used here to a subterranean setting.
ArtStation - Map of Scyllhia, Karin Wittig
alley cat map