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Visited the Hoshikusokan #obsidian mine display room which was located in the woods on a mountainside slope above the Kokuyōseki Taiken Museum, Nagawa Town, #Nagano Pref.
Took about a 35-minute trek up the mountain with a cow bell to ward off bears & numerous stops along the steep trail to rest the ageing legs & lungs.
Display showed how the ancients dug deeper over the ages for the material to make their knives & arrowheads.
Display closes from 1 Dec to 30 Apr.
https://jomon.co/en/point/detail/55/
#Japan