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大瀬鉱山 (Ōse Kōzan)

大瀬鉱山は愛媛県喜多郡内子町にあった鉱山。大内滝鉱山(程内鉱山、ごんだ鉱山)、大瀬鉱山、熊之滝鉱山などの総称である。 江戸時代に発見されとも言われるが不詳。 大内滝鉱山は1887(明治20)年に開抗するも続かず、1912(大正元)年に大瀬鉱山(株)が取得し探鉱するが失敗する。 大瀬鉱山1888(明治21)年に開抗。1895(明治28)年に資源枯渇し休抗。この頃現地では真吹製錬法で粗銅を生産、製品は馬の背に乗せ中山を経由、郡中港に運んだという。 熊之滝鉱山は1889(明治22)年から1892(明治25)年に小規模に稼行。 1909(明治42)年に熊の滝鉱山で深部で有望鉱床が発見され、翌1910(明治43)年に大瀬鉱山(株)が設立、近代的な採掘が行われた。鉱山街には社宅や演芸場、臨床所なども整備されたという。 1913(大正2)年、久原鉱業(株)(後の日本鉱業)に売却される。 鉱石は当初、中山村出渕までは索道(大瀬鉱山索道)で、出渕~郡中は馬車にて行っていたが、馬車による運賃が高額であったため、1914(大正3)年、伊予鉄道によって出渕~郡中の索道(伊予索道)が延伸された。これにより、郡中の港と大瀬鉱山が索道によって結ばれることになった。 第一次世界大戦による好景気に加え、1915(大正4)年に大瀬西鉱床が発見され、活況を呈した。 第一次世界大戦後の世界恐慌により銅の国際相場が暴落、1920(大正9)年に中止。 なお、日浦~郡中の索道設備はその後広田鉱山により利用されている。 戦後、1950(昭和25)年より探鉱が試みられるが失敗し、1954(昭和29)年に閉山した。 地図はおおよその地点。 木造の鉱山事務所跡が残っていたらしいが現況不詳。

Ose mine

The Ose mine was located in Uchiko-cho, Kita-gun, Ehime Prefecture. It is a collective term for the Ouchi Falls mine (Honai mine, Ganda mine), the Ose mine, and the Kumanotaki mine. It is said that it was discovered in the Edo period, but it is unknown. The Ouchi Waterfall Mine did not continue to open in 1887 (Meiji 20), but in 1912 (Taishomoto) acquired and explored, but failed. Opened in 1888 in the Ose Mine. In 1895 (Meiji 28), resources were depleted and rested. At this time, it was said that local copper was produced by the Mabuki smelting method, and the product was put on the back of the horse and carried to Nakayama Port via Nakayama. The Kumanotaki mine operated on a small scale from 1889 to 1892. In 1909 (Meiji 42), a promising deposit was discovered in the deep part of the Kumanotaki Mine, and in the following 1910 (Meiji 43), Ose Mine Co., Ltd. was established and modern mining was carried out. In the mine town, company houses, theaters, clinical offices, etc. have been established. Sold to Kuhara Mining Co., Ltd. (later Japan Mining) in 1913. The ore was originally a cableway (Ose mine cableway) up to Nakayama Village, and it was carried out by horse-drawn carriage from Deyu to Gun-gun. The cableway (Iyo cableway) in the county was extended. As a result, the port in the county and the Ose mine were connected by a cableway. In addition to the booming economy of the First World War, the Ose west deposit was discovered in 1915 and was booming. The copper international market crashed due to the Great Depression after the First World War, and was canceled in 1920. The cableway facilities in Hiura-gun are later used by the Hirota mine. After the war, exploration was attempted from 1950 (Showa 25), but it failed and closed in 1954 (Showa 29). The map is an approximate point. The remains of a wooden mine office seemed to remain, but the current situation is unknown.

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