If I had any old maps, I'd be sure to post them, I was always a 'free-winger' when I ran campaigns back in the day and only had a basic concept of "Okay, they go into tunnels then eventually it opens into a cavern and splits towards the surface and the depths of the underground ruins. . ." My players were too impatient to wait for me to draw out detailed maps every scene change. If I ever get into it again, you can rest assured I won't let something small like their patience or sanity stop me though.