Ysgwyddgwyn Presbyterian Church
|Deri shown within Caerphilly|
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|Sovereign state||United Kingdom|
Deri is a village in Caerphilly County Borough, Wales. 'Deri' is Welsh for oak trees. Deri along with Pentwyn and Fochriw make up the community of Darran Valley. The village grew around the Industrial Age to serve the collieries of Fochriw, Pencarreg and Groesfaen.