Dumbarton Rock and Castle at the Confluence of the River Leven and the River Clyde

This ancient fortress had a final military role to play during the Second World War, when an anti-aircraft battery was installed on Dumbarton Rock. Four high-explosive bombs landed on the Rock in May of 1941. There was some damage to its structures (for example, the Magazine was hit, although, fortunately, it had long ceased to be used for its original purpose), but there were no casualties. No traces of the gun emplacements are visible. Quoted from the Geograph website