Cast Iron Shore was a name given to the banks of the Mersey

River Mersey

The River Mersey is a river in North West England. It is around long, stretching from Stockport, Greater Manchester, and ending at Liverpool Bay, Merseyside. For centuries, it formed part of the ancient county divide between Lancashire and Cheshire....

 in south Liverpool

Liverpool

Liverpool is a city and metropolitan borough of Merseyside, England, along the eastern side of the Mersey Estuary. It was founded as a borough in 1207 and was granted city status in 1880...

 due to the presence of an iron foundry

Foundry

A foundry is a factory that produces metal castings. Metals are cast into shapes by melting them into a liquid, pouring the metal in a mold, and removing the mold material or casting after the metal has solidified as it cools. The most common metals processed are aluminum and cast iron...

. St Michael's Church, opened in 1815, was known as the Cast Iron Church because of the extensive use of cast iron in its construction.

Cast Iron Shore is mentioned in The Beatles' song "Glass Onion

Glass Onion

"Glass Onion" is a song by The Beatles from their 1968 double-album The Beatles primarily written by John Lennon and credited to Lennon–McCartney. This is the first track on the White Album to feature Ringo Starr on drums...

". Liverpool poet, Justine Tennant, also mentions the Cast Iron Shore in her poem Norra Lorra Otters.