Historic counties of England the Morecambe Bay tidal flats. When the first county councils were set up in 1889, they covered newly created entities known as administrative counties. Several historic subdivisions with separate county administrations were also created administrative counties, particularly the separate ridings of Yorkshire, the separate parts of Lincolnshire, and East and West Sussex. The Local Government Act 1888 also contained wording to create both a new "administrative county" and "county" of London, and to ensure that the county boroughs which were created at the same time continued for non-administrative purposes to be part of the county which they had previously formed
Iffa and Offa West was built by order of King John around 1186 to guard another crossing of the River Suir. A bridge was started soon after the castle was completed. When County Tipperary was split into North and South Ridings in 1836, Iffa and Offa West was allocated to the south riding. However, the neighbouring barony of Kilnamanagh was split into Upper and Lower half-baronies, being allocated to the north and south ridings respectively. The barony is set in that part of the Suir valley where the river makes a 90° turn to the east. The Knockmealdown Mountains rise abruptly to the south,