The timeline thread is now caught up with where I am in my reading list over in the EDDE group. Note that more will be added to the timeline as I continue reading through all of the older adventures.
I have chosen to use the Greyhawk calendar, so the current year is 579 C.Y.
I'll be doing a geography post soon, but to get a general idea of where Hommlet is - The Barrier Peaks are the Rocky Mountains and Hommlet is west of them, around southern Oregon/northern California. The area for 100 miles around Seattle is a lifeless wasteland known as the Blackened Plain.