Original: Izumo While Amaterasu is enshrined at the Honden Shrine or "Grand Shrine", which is at the entrance to the Ise Shrine, Susano'o is enshrined at Kumano Taisha located in Shimane (formerly the Izumo region), where he descended when banished from heaven.
Simplified: Izumo Amaterasu's shrine is at Ise Shrine, and Susano'o's is in Izumo, where he came down to Earth when banished from heaven.