Ravenscrag Castle?

[Henry Lewis 432]

Last week i bought the 2 books from the Greyhawk box set off of Ebay for $15.99 and to my surprise they came with both Original Maps in neer perfect condition. It also came with 2 huge Hex grid maps of Ravenscrag Castle and surrounding area's. Anyone have any idea what the ravenscrag maps pertain to? they were drawn by Derek C. Watson. Ive googled it but have had no luck.

[Distant Scholar]

I'm guessing they're from the Judges Guild product Ravenscrag.

[Henry Lewis 432]

Thank you