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Nakao Lava Kaneko, 1988

• Type locality: 820 m above sea level at Skyline course, Nozawaonsen ski field, Nozawaonsen city, Shimotakai county, Nagano prefecture
• Volcanic rocks
• early Pleistocene

• Lithofacies: Augite hypersthene dacite, Andesite lava

• Thickness: 100 m
• Upper limit: Unconformity (Karanosawa Lava)
• Lower limit: Unconformity (Akataki Lavas)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: 820 m above sea level at skyline course, Nozawaonsen ski field, Nozawaonsen city, Shimotakai county, Nagano pref.

• Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)