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DumbaraDumbara is a town located in the Ratnapura District, Sri Lanka. It has a long history of mining activities. It is where the first commercial operating graphite mine in the country, opening in 1840.
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DumbaraDumbara is a town located in the Ratnapura District, Sri Lanka. It has a long history of mining activities. It is where the first commercial operating graphite mine in the country, opening in 1840.
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