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Hinoharu Formation Kofu Basin Quaternary Research Group, 1969

• Type locality: Hinoharu, Nagasaka town, Hokuto city, Yamanashi prefecture
• Type locality: Kobozaka, Takane town, Hokuto city, Yamanashi prefecture
• Coherent formation
• Pleistocene

• Lithofacies: Peat, Mud, Sands, Gravels, Mudflow deposit
• Lithofacies (Minor): Volcanic ash, Scoria

• Thickness: 2.8 m
• Upper limit: Unconformity (Kobozaka Pyroclastic Rocks)
• Lower limit: Unconformity (Nirasaki Debris Avalanche Deposit)

• Distribution: Hinoharu, Nagasaka town, Hokuto city, Yamanashi pref.; Kobozaka, Takane town, Hokuto city, Yamanashi pref.
• Fossils (Peat): Acer sp., Alnus hirsuta, Alnus japonica, Carpinus erosa, Castanea crenata, Fraxinus sp., Pinus cf. densiflora, Pinus koraijensis, Trapa macropoda, Wisteria sp.

• Kawachi (1977) Geology of the Yatsugatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 92p. (in Japanese with English abstract 4p.)