This month was one of those months when chosing a winner was like Robert Jordan's "choosing between two sunsets". Each is unique, but beautiful in its own right, and worthy of a vote.
I chose Ascension's "Tunnels of Turrack the Terrible" and Mrrkyl's "U-Turn Challenge" because they both evoked fond memories of old hand-drawn maps of the sort we used to make in the actual old days. I started playing Dungeons and Dragons back in 1978, and then everything was new and cool. Neither Acension's nor Mrrkyl's entries could have been pulled off back then. We didn't have the tools or the subtlety to do either, but we all would have recognized their dungeons as having been created by kindred spirits.
I could have as easily chosen pretty much any of the other ones and not felt awkward. You all deserve to win and I will reward you all the only way I can. Have some rep contributors!