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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Nyth-y-Gigfran Quarry ： ウィキペディア英語版 Nyth-y-Gigfran Quarry Nyth-y-Gigfran Quarry (sometimes spelt: Nith-y-Gigfran Quarry or Nidd-y-Gigfran; sometimes known as Glan-y-Pwll Quarry) was a slate quarry in the town of Blaenau Ffestiniog, north Wales. == History == Nyth-y-Gigfran quarry opened around 1840, operated by Thomas James. It was located about 300ft above the settlement of Glan y Pwll, south of what was to become Blaenau Ffestiniog. The quarry was sited on the steep cliffs that form the eastern edge of Allt-fawr and was entirely underground. In 1861 the Glan-y-Pwll Slate & Slab Company Ltd. was incorporated to work the quarry. In 1867 the incline was constructed to connect to the Ffestiniog Railway. The quarry closed in 1870, with the company going into liquidation two years later. 〔 After this failure the owning company was acquired by the owners of the neighbouring Oakeley Quarry which was mining the north slopes of Allt-fawr. After the amalgamation, the Nyth-y-Gigfran and Oakeley workings were joined together underground and the Nyth-y-Gigfran chambers were worked through to Oakeley.〔 Thus Nyth-y-Gigfran became part of the largest underground slate mine in the world, and was worked until Oakeley closed in 1969. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nyth-y-Gigfran Quarry」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.