I’m using four layers:
The Alder King is going to be a game of exploration. There are no detailed maps available to the players.
If you have a crappy browser, the above PNG file with a transparent background will probably look borked. Get Firefox instead.
The above map without the Hex and Unknown layers, of course.
I like it!
In fact, I wrote a tutorial for those interested in doing something similar: Old School Hex Map Tutorial.
Now that I’ve placed a few things on the map, I will need a little campaign plan.