Hoshikuso Pass obsidian mine site
Japan
The Hoshikuso Pass obsidian mine ruins (Hoshikuso-tōge kokuyōseki gensanchi iseki) is an archaeological site consisting of shallow pits from which obsidian had been mined during the Jōmon period. It is located in the Daimon neighborhood of the town of Nagawa in the Chūbu region Japan. It has been protected as a National Historic Site since 2001.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).