This map is one of the 18 large hex maps which constitute the Judges Guild Wilderlands setting.
Map 7 contains the area known as the Desert Lands, containing the fabled Holy Cities of Mycr. The map itself accompanies the Fantastic Wilderlands Beyonde product. See that product for more details.
Map 7 of 18
Note: these pdfs are scans of 20-year old maps originally on brown paper. Ssome scans may contain blotched or dark sections or extraneous pencil or pen marking. They are the best scans available of these old products. This map in particular is of less than perfect quality.