I wrote a little something that generates 30x40 hexmaps seeded with locations for play. If you open that url in a browser, a pdf is generated for you.
The map is drawn on a hexmap following the guidelines set down on page 235 of the rulebook.
I've tried with Safari (seems to work well) and Chrome (seems to not work as well). Let me know if you find this useful. And, if you have suggestions, I'd love to hear them.