The Upper Derwent dam was the one used by the Dambusters to practise the difficult technique of dropping the Bouncing Bombs, as it looked similar to their intended target in Germany's Ruhr Valley.

Derbyshire Peak District Derwent Reservoir Upper Derwent Dam wall Dambusters Buildings and Structures

ImageID:1219831, Image size: 5872 x 4013 pixels

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