Photographs and annotated sketch and stripped specimen at Rendaiji Gravel Bed, Yuzawa City, Akita Prefecture, NEJapan.
Fig. S1. Photographs and annotated sketch showing the excavated west-facing slope. Numerals 1–14 are unit numbers, and Gm, Gs, and Ss are facies codes. The cliff is ~10 m high.
Fig. S2. Stripped specimen from the northern part of the west-facing outcrop (Fig. S1), showing the sedimentary log of the Rendaiji Gravel Bed.