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Top-left border
To the north, it reaches the Moon original: 月 (yue). In the context of Ming-era cartography, this likely refers to a symbolic boundary or a truncated reference to a northern celestial direction.
Bottom-left border
To the south, it reaches the Great Mound original: 大堩 (Dajie). A term often used in ancient Chinese geography to denote a vast boundary or a specific legendary landmark at the edge of the known world.
Wakasa Province Jurisdiction: 3 Districts original: 郡 (gun/kōri). These were administrative subdivisions within a province.
Tango Province Jurisdiction: 5 Districts
Ōmi Province Jurisdiction: 12 Districts
Yamashiro Province
Iga Province Jurisdiction: 4 Districts
Settsu Province Jurisdiction: 13 Districts
Inaba Province Jurisdiction: 7 Districts
Hōki Province Jurisdiction: 6 Districts
Tanba Province Jurisdiction: 6 Districts
Harima Province Jurisdiction: 14 Districts
Izumo Province Jurisdiction: 10 Districts
Iwami Province Jurisdiction: 6 Districts
Bizen Province Jurisdiction: 8 Districts
Bitchū Province Jurisdiction: 9 Districts
Bingo Province Jurisdiction: 10 Districts
Suō Province Jurisdiction: 6 Districts
Nagato Province Jurisdiction: 6 Districts
Mishima Literally "Three Islands." Likely referring to the islands in the Shimonoseki Strait or the Hagi region.
Awa Province
Sanuki Province
Iyo Province
Tosa Province Jurisdiction: 7 Districts
Small Island
Chain Islands original: 連島 (Liandao). Likely a reference to a string of islets in the Inland Sea or near the coast of Shikoku.
Gendan illegible characters follow? Possibly a phonetic transcription of a local island name or a legendary landmass mentioned in Ming maritime accounts.