The source of the Tern is considered to be the lake in the grounds of Maer Hall, Staffordshire.

Extensive peat bog formerly existed,[2] extending from Crudgington on the Tern as far as Newport.

At Longdon-on-Tern, the Tern is spanned by the Longdon-on-Tern Aqueduct, the world's first large-scale cast iron navigable aqueduct (Benjamin Outram's 13 m cast iron Holmes Aqueduct pre-dated it by a month), designed by Thomas Telford to carry the Shrewsbury Canal.

Although no longer connected to the canal network, The 62-yard (57 m) long structure still stands, but is marooned in the middle of a field.

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