Gower or the Gower Peninsula ( or ) is a peninsula in South Wales, projecting westwards into the Bristol Channel, and administratively part of the City and County of Swansea. In 1956, Gower became the first area in the United Kingdom to be designated an Area of Outstanding Natural Beauty.
In modern times Gower was administered as a Rural District of Glamorgan. In 1974 it was merged with the county borough of Swansea, to form the Swansea district of West Glamorgan. Since 1996 Gower has been part of the Swansea (principal area) (or the City and County of Swansea).
The first three maps are provided by A Vision of Britain through Time
These maps were found on Wikimedia Commons
These maps of Glamorgan post-1974 were found on another site and are very useful for sorting out the up-to-date geography of the area