Last month, Wizards of the Coast made two old RPG map supplements free to download on DriveThruRPG.

The World of Krynn Trail Map is a Dragonlance supplement, and its availability comes weeks after the Dragonlance authors settled out of court in a $10 million legal case against Wizards of the Coast.
The Krynn map covers the continent of Ansalon, with locations like elven-stronghold of Silvanesti, high plains of Palanthus, Sancrist Isle and the realms of the minotaurs.
The Eastern Countries map is an expansion for an original D&D campaign setting of Mystara. It includes Vestland, Thyatis, and going as far east as the mighty lsle of Dawn.
You can find thoughts and opinions on this article in the comment section below.