This 17" by 22" map depicts the continent of Rhadamanthia, upon which the Wilderlands of High Fantasy are found. The Wilderlands is merely one of 15 large districts of Rhadamanthia, each District divided into 18 Campaign Regions.
The 15 Districts of Rhadamanthia are:
Northern: The Great Lakes, the Frozen Lands, Valonaria, Vanaraya, and the Tempest Lands.
Central: The Giant Lands, the Infinite Desert, the Wilderlands of High Adventure, Western Karak, and Eastern Karak.
Southern: The Lesser Horned Empire, the Greater Horned Empire, the Demon Empire, the Demon Seas, and the Infinite Islands.
Each District and each of the Campaign Regions of Rhadamanthia are described in the "World of the Wilderlands of High Adventure" article in Adventure Games Journal #1. The World of the Wilderlands of High Adventure guidebook, containing the information presented in that article, is separately on this fine website.