The coastline is characterised by lowland hills and small mountains. It is a mainly rural area with fishing and hill farming (as well as some arable farming) still playing a large part in the local economy, although tourism is increasing. However, it has also been used for the location of films such as The Wicker Man (starring Edward Woodward) which was filmed around Kirkcudbright.
Between 1869 and 1921, the estuary was crossed by the Solway Junction Railway on a 1780 m (5850 ft) iron viaduct (Edgar and Sinton, 1990). The line was built to carry iron ore from the Whitehaven area to Lanarkshire and was financed and operated by the Caledonian Railway of Scotland. The railway was not a financial success. After the railway ceased operating, the bridge provided a popular footpath for residents of Scotland (which was dry on a Sunday) to travel to England where alcoholic drink was available. The viaduct was demolished between 1931 and 1933.
The water itself is generally benign with no notable hazards excepting some large areas of salt and mud flats which often contain dangerous patches of quicksand that move on a regular basis. It is recommended that visitors do not attempt to navigate them without expert guidance. Also, 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 (see http://www.sundayherald.com/40306). The adjacent Irish Sea is a carrier of radioactive pollution, and Sellafield is nearby.
Most of the islands on this section of the English coast are much further south in the Furness group, which is outside the Firth.
History
The earliest recorded history of the local area (including the Solway Plain) pertains to the Roman settlement of this part of Britannia. In the year 122 ADEmperor Hadrian caused the major monument of Hadrian's Wall to be built, connecting the Solway Plain to the eastern coast of Britannia.
The name 'Solway' is of Anglo-Saxon origin, and originates in the thirteenth century as the name of a ford across the mud flats at Eskmouth. Sol is the word for mud, and wæth refers to a ford. The three fords in the area at that time were the Annan or Bowness Wath, the Dornock Wath (once called the Sandywathe), and the main one was the Solewath, or Solewath, or Sulewad.
References
Edgar, S. and Sinton, J.M., (1990), The Solway Junction Railway, Locomotion Papers No. 176, The Oakwood Press, ISBN 0-85361-395-8
Neilsen, George (1899), "Annals of Solway — Until A.D. 1307", in Forbes, Peter, Transactions of the Glasgow Archaeological Society, New Series, III, Glasgow: James Maclehose & Sons, pp. 245-308 (available at books.google.com)