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Lock gates slowly drop under the water at Barragem do Carrapatelo dam and lock on the Douro river near Porto
Lock gates slowly drop under the water at Barragem do Carrapatelo dam and lock on the Douro river near Porto
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View upwards inside the very deep lock of the Carrapatelo dam on River Douro in Portugal
View upwards inside the very deep lock of the Carrapatelo dam on River Douro in Portugal
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Powerful gears and chain lower the lock gates at the river lock in the Douro valley
Powerful gears and chain lower the lock gates at the river lock in the Douro valley
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Powerful gears and chain lower the lock gates at the river lock in the Douro valley
Powerful gears and chain lower the lock gates at the river lock in the Douro valley