Rock surfaces at Medieval quarry sites in Kagawa Prefecture.

Fig. S1. Rock surfaces at Medieval quarry sites in Kagawa Prefecture. The Locality of sites are shown iin Fig.2 of the article related (https://doi.org/10.5575/geosoc.2023.0036). a: Mt. Hiyama (St. 1), b: Oda (St. 3), c: Ogushi (St. 4), d: Yakuri-ji Temple (St. 5), e: lwaya-ji, Sakaide City (St. 6), f: Gyukaku-ji Temple ruins (St. 7), g: lyatani-ji Temple (St. 8), h: lwaya-ji Temple, Mitoyo City (St. 9), i: Koryu-ji Temple ruins (St. 10)