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Since there was no machinery in those days, mining operations were done manually with a pick and shovel. Prison labor was used for the mining. The sulphur was then loaded on horseback and boats to Kushiro.
Keywords: hokkaido teshikaga iozan mountain sulfur volcano

Since there was no machinery in those days, mining operations were done manually with a pick and shovel. Prison labor was used for the mining. The sulphur was then loaded on horseback and boats to Kushiro.

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