(Technically, the most southerly point reached by an ice sheet during the Quaternary was The Dell, a few metres south of St Andrew's Church.

)[4] It is the type site for Hornchurch Till, boulder clay laid down by the ice sheet in the Ingrebourne Valley.

[5] The site was discovered by geologist T. V. Holmes during construction of the Romford to Upminster railway line in 1892.

An excavation in 1983 revealed extensive Jurassic fossils and rocks that had been carried from the Midlands by the ice sheet.

[1] It featured briefly in the Channel 4 TV series Birth of Britain with Tony Robinson in 2011.