Roseworthy ()Place-names in the Standard Written Form (SWF) : List of place-names agreed by the MAGA Signage Panel. Cornish Language Partnership. is a hamlet on the A30 trunk road in the parish of Gwinear-Gwithian in Cornwall, England, UK.
Roseworthy Barton is a farm half a mile south of Roseworthy.Ordnance Survey (1983) Land's End, The Lizard & The Isles of Scilly, sheet 203; 1:50 000
At Roseworthy there was once a holy well and chapel of Saint Winierus, which was also the site of the most splendid Celtic cross of Cornwall (now at Lanherne).Cornish Church Guide (1925) Truro: Blackford; p. 106
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