The Trum Gelli cairns are at the left-hand end of the Tarren ridge. Tarrenhendre (also with a Bronze Age barrow) is right of centre. Tarren y Gesail, the highest summit of the Tarrenau, but without a cairn, is extreme right. The Afon Dyfi is the border between Dyfed/Ceredigion and Gwynedd, once two different kingdoms.
Image credit: A. Brookes (23.5.2015)
