Yoichi's Crossroads is south west of Hoyoshi Springs.
The Artefact is close to the big fire.
Mongol Artefacts: Adak Tree - Maps
Mongol Artefacts: Adak Tree - Location
Liberate Fort Imai
Fort Imai is south west of Kushi Temple.
The artefact is in the big leader tent.
Dishware and Pottery
High Point Guard Post
The Guard Post is south of Jogaku Temple.
The artefact is in the tent.