Arafune-Azumaya Cold Storage Facilities

Arafune-Azumaya Cold Storage Facilities (Arafune-Azumaya fūketsu sanshu chozō sho ato) are natural refrigerators used in silkworm production in association with the Tomioka Silk Mill in the towns of Shimonita and Nakanojō, Gunma Prefecture Japan. They are jointly designated as a National Historic Site and, together with the Tomioka Silk Mill, inscribed on the UNESCO World Heritage List as part of the serial nomination Tomioka Silk Mill and Related Sites

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