Talk:List of boundary changes in North West England

Boundaries in the estuary of the River Mersey
Relevant Ordnance Survey maps used to carry a note that stated that 'Boundaries in the River Mersey have not been ascertained and are not shown'. However recent OS maps do show these boundaries, presumably as a result of a legal instrument of some sort. Might that be tracked down and included? Geopersona (talk) 17:19, 30 July 2023 (UTC)