It is about one and a half miles south of the Solway Firth, and its purpose was to guard the south end of two important Solway fords, the Peat Wath and the Sandwath, favourite routes for medieval border raiders.
In British waters it has a southerly bias to its distribution but has been found as far north as the Solway Firth and the Firth of Clyde.
Some historical banners are also religious, and depict Protestant martyrs such as the Scottish Solway Firth martyrs or key figures in the Reformation such as Martin Luther and John Calvin.
Hughes constructed three 'Hippo' caissons were towed from the Morfa to the test site Rigg Bay, Solway Firth near Garlieston, Scotland.
The Ministry of Defence had by 1999 fired more than 6,350 depleted uranium rounds into the Solway Firth from its testing range at Dundrennan Range.
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In Scotland, where the species is confined to the Solway Firth, there is a reserve at Caerlaverock.
The Romans began military expeditions into what is now Scotland from about 71 CE, building a series of forts, but by CE 87 the occupation was limited to the Southern Uplands and by the end of the first century the northern limit of Roman expansion was a line drawn between the Tyne and Solway Firth.
The famous photo was taken on Burgh Marsh, situated near Burgh by Sands, overlooking the Solway Firth in Cumbria, England.