Jonathan’s map style is compatible with the overland style he created for the Cartographer’s Annual Vol 5, but is also fully self-contained.
Kobold Worldbuilder’s Special: Visit the Midgard page at ProFantasy Software before May 15, 2013 and use the voucher code KOBOLDPRESS@CC3 to get 50% off CC3 when you buy it with any Cartographer’s Annual.
Already own CC3? Email help@profantasy.com and they’ll work out a voucher for another product! Such nice guys over there.