万倉の大岩郷, Geological formation in Yamaguchi Prefecture, Japan.
The Mangura Rock Field spans 110 meters in length and 40 meters in width, featuring massive boulders measuring between 1 to 6 meters in diameter.
The rock formations developed during the period from the Pleistocene to the late Yayoi era, receiving national natural monument status in December 1935.
The site serves as an educational center where students and researchers study geological processes and natural rock formation patterns.
Visitors can access the site by public transportation or private vehicle, with hiking trails suitable for examining the quartz diorite rock formations.
The rock field contains specific ferns and orchids, including Crypsinus hastatus and Bulbophyllum inconspicuum, growing among the stone formations.
GPS coordinates: 34.13283,131.23589
Latest update: March 7, 2025 23:05
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