| Name: | Ystradfellte [Also: Maen Madoc] | CISP No: | YFLL1 |
| Place: | Sarn Helen | Grid Ref: | SN 9180 1570 (GB)
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| Parish: | Ystradfellte | Stones: | 1 |
| County: | Brecknock (Brycheiniog) , Wales | Saint(s): | none |
| Site Type: | landscape setting |
Westwood/1876, 64: `one of the bleakest and most unfrequented parts of South Wales in September 1846. The Roman road called Sarn Helen or Lleon joins the ordinary road from Devynock to Ystradfellte, about 1 3/4 miles to the south of the Maen Llia, a great block of stone marked on the Ordnance Map near the spring of the little river Llia'.
Anon/1901, 68: `An inscribed stone, locally known as `Maen Madoc', stands beside the Roman road called `Sarn Helen', about 1 1/2 mile north-west of Ystradfellte village.
Sarn Helen. -- Here was seen what is considered to be a good specimen of an undoubted Roman road. It is still used as a road where it passes the Maen Madoc, and can be traced as a ridge across several fields in the Nedd Valley at about 2/3 of a mile south-south-west of Maen Madoc, and close to the highest farm in the valley, named Coed-y-garreg.
Several cairns have lately been explored in this valley by Mr. Cantrill and others. There are also, it is believed, hut-circles on the hill-sides -- as near Maen Llia'.
Nash-Williams/1950, 82: `The position of the stone suggests a roadside burial in the Roman manner (cf. No. 258)'.