From the front page of the PDF:
A One-Round Dungeons & Dragons® Living Greyhawk
Iuz’s Border States Metaregional Adventure
Version 1.0
In 596 adventurers discovered what is best described as a living Ur-Flan culture, the Hursik within Burneal forest. Now interested parties are funding a new expedition to better explore these archaic folk. This adventure continues the “Dragon Scales” adventure path (IUZ6-01, IUZ6-02, IUZ6-04, IUZ6-06, IUZ6-07 and IUZ6-08) and for best enjoyment these adventures should have been played in order before this adventure is played. This adventure is the second installment of the Great Northern Expedition IUZ6-01. A one-round Iuz’s Border States Metaregional adventure set in the Burneal Forest for APLs 8-14.
Resources for this adventure include Frostburn [Wolfgang Baur, James Jacobs, George Strayton]