A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
Author: Atarah al'Norahn
Oburun was one of the nations of the Free Era. It was located in the northwestern area of the Westlands. To the north was Basharande and Elsalam, with Roemalle to the southeast, Masenashar to the south, seprated by the River Ivo, Oman Dahar to the southwest and Indrahar to the west. Eventually, this area of land became part of what is now the Black Hills.
By FY 963, Oburun had fallen to Hawkwing.