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metroblossom: Deep Tunnel Entrance to Thornton Reservoir
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metroblossom: Road Out of the Thornton Quarry
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metroblossom: The Thornton Reservoir
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metroblossom: Tunnel and Reservoir Plan Shaft Head
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metroblossom: Calumet Water Reclamation Plant Deep Tunnel Pumping Chamber
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metroblossom: Calumet Water Reclamation Plant