A gold mine spanning the midslopes of Mt. Kegane (elevation 1400-1600 meters) at the Kai-Suruga border. Mentioned in Takeda vermillion-sealed documents, with gold miners conducting extraction. It operated from around the 16th century, peaked in the mid-17th century, and was abandoned in the late 17th century.
The start date is only approximately 'early 16th century'; the earliest documented mention is a Takeda vermillion-sealed document from 1571.
The mining area extends widely across Mt. Kegane's midslopes; the coordinate represents the Yu-no-oku district where it is located.
Certainty: MediumHow far the account above is supported by the cited sources. It does not refer to the precision of the coordinates or the dating.
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