So I finally got around to putting this Frankenstein together. Most of this map is shamelessly lifted from an old Dungeon adventure, modified to suit my purposes. That's a Rob Conley swamp texture. Pinewoods are ripped from my commissioned map of Dolmen Island by Jonathan Roberts. So it's a little punk rock, but it does the job.
I ditched the name Johnstown for Luskwetch. It's part of the new naming protocol (i.e. Does it sound like a place you could walk to in Jack Vance's Dying Earth?)
Also, as per Il Male's request, here's my very unofficial diy cover for Swords & Wizardry White Box. Thanks for digging this out, guys! I'm flattered.