Place · sea

Plymouth Sound

Plymouth Sound is a deep bay on the English Channel at the mouths of the rivers Tamar and Plym, between Devon and Cornwall. It shelters the port of Plymouth and the naval base at Devonport. A breakwater across its entrance, completed in the 1840s, made it one of the main anchorages of the Royal Navy, and harbours on its shores were used for trade since prehistoric times.

Plymouth Sound
Image: Martin Bodman · CC BY-SA 2.0 · Wikimedia Commons

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Dumnonii

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Cite this entry
APA
The Epoch Institute. (2026). Plymouth Sound. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/plymouth-sound
MLA
“Plymouth Sound.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/plymouth-sound. Accessed .
Chicago
The Epoch Institute. “Plymouth Sound.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/plymouth-sound.
Harvard
The Epoch Institute (2026) ‘Plymouth Sound’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/plymouth-sound (Accessed: ).

Last reviewed October 2026Random entry ↻