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b3tarev3: Gairs Colliery site & spoil heap
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b3tarev3: Colliery managers house
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b3tarev3: Boiler house
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b3tarev3: Main drift & Fan drift
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b3tarev3: Fan Drift
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b3tarev3: Old rails & tramway leading to Alston
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b3tarev3: Anthracite
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b3tarev3: Date Stone