AdmundfortGeographer
Getting lost in fantasy maps
The ones around Hochoch? Those would be a legacy of the Greyhawk Wars and then Living Greyhawk development. LG took the timeline a few years after the Greyhawk Wars, had forces from Gran March liberate Hochoch from the occupying armies of the giants.Where did you find those keeps you placed near the Dim Forest? Are those from an adventure?
The LG campaign had a series of protective forts built around Hochoch. I found the forts on multiple Geoff Triad maps.