Old School map legend

Insomnia struck me last night and while I could not fall asleep I came across the old TSR module M1 Blizzard Pass. Being a map nerd, I was immediately drawn to the map which had a wonderful legend (or key) and decided to make a new one to model my latest style. This is probably useless to anyone but me, but hey, "Wohoo maps!"

Have a Happy Thanksgiving to those celebrating.