A very useful website  maps.familysearch.org  has come to my attention. The site is based on the 1851 jurisdictions of England and Wales and allows the user to zoom in and examine different features in a graphical form. The map is able to display counties as seen here or configured to show by parish, civil registration district, diocese, rural deanery, hundred, or poor law within a county. A search facility allows the user to enter a place name and the result will be pinpointed on the map together with relevant location information.