Thank you, Dave.

From Wikipedia; Tyldesley is situated at the edge of the Lancashire Plain north of Chat Moss, and the Banks is a sandstone ridge where the foothills of the Pennines begin and gave the town its early name of Tildsley Banks. The land rises from 100 feet (30 m) at the foot of the banks to 250 feet (76 m) at the highest point.

Tyldesley is pronounced "Til-slee", and locally known as "Bongs". In local pronunciation "Banks" was corrupted to "Bongs". The old name for Mosley Common was the "Hurst" or "Tyldesleyhurst"; the suffix "hyrst" means a wooded hill (OE).

My mate in Tyldesley never told me that.