Motorway cantilever sign
A blue overhead sign suspended over the motorway from a post on the left, with a diagonal arrow pointing up and left, and the following text.
A58 [Solid circle diversion symbol] St Helens; Ashton .
Junction number: 24.
The Ashton in question is Ashton-in-Makerfield. This whole district was once called Makerfield; nearby Newton used to be named the same way, but now goes by the more exotic Newton-le-Willows.