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Sarn Helen

235 km / 146 miles

Carms, Ceredigion, Conwy, Gwynedd, Powys
Sarn Helen is the name of this Roman route through West Wales, connecting various Roman remains. In places the old road is clearly visible, but in others it is a matter of conjecture. From the Roman fort at Caerhun the route heads along the edge of Snowdonia to the Swallow Falls, Dolwyddelan, skirts Ffestiniog to Trawsfynydd, and continues to Dolgellau and Machynlleth. After crossing the Rheidol valley, the route becomes less wild and more agricultural to Bronant, Lampeter, and Carmarthen, albeit moorland at 1,200 ft is crossed in the Pencader area. Navigational skills would be appropriate on the northern part of the route.


Path Type: Other Paths
Attributes: Challenging; Cycle Route; Moorland; Heritage
SH773705 - Caerhun, Conwy
View on StreetMap
SN417205 - Carmarthen, Carms
View on StreetMap
Web Sites: Mountain Bike Routes UK - Sarn Helen Trail Route Companion Pack
  Wikipedia - Sarn Helen

Publications, Badges and Certificates:

Booklet: Sarn Helen Trail: Mountain Bike Route Companion Packs ( - 1998)
Paperback: Sarn Helen: Walking a Roman Road Through Wales (Cicerone Press - 1992)


Show OS Map
Purchase Ordnance Survey Maps:
OS Landranger: 115124135146159
OS Landranger Active: 115124135146159
OS Explorer: 171823177185186198199213215
OS Explorer Active: 171823177185186198199213215

Group Accommodation within 5 Km of this Path:

Hostel Accommodation: Rowen YHA, Rhiw Farm, Rowen, Conwy 3 Km
Hostel Accommodation: Conwy Valley Backpackers Barn, Tal-y-Bont, Conwy < 1 Km
Hostel Accommodation: Betws-Y-Coed YHA, Swallow Falls, Betws-y-Coed, Gwynedd < 1 Km

Click to show 19 more Accommodations

Connected Paths:

National Trails (England & Wales): Glyndwr's Way/Llwybr Glyndwr National Trail; Wales Coast Path
Other Paths: Birmingham and Aberystwyth Walk; Cambrian Way; Celtic Way; Cistercian Way (Wales); Coast to Coast - Snowdonia to the Gower; Conwy Valley Way; Dyfi Valley Way; Hope House Way; Mal Evans Way - Borth to Devil's Bridge; Mary Jones Walk; Mawddach Trail; Mawddach Way; Mawddach-Ardudwy Trail; Snowdonia's River of Gold; Ystwyth Trail
Click to show 12 more Other Paths
Anytime Challenges: Around Idris; Around the Carneddau; Around the Rhinogs


GPS Exchange Format Route File: Sarn Helen GPX Exchange Format Route File Login to Download
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MemoryMap Route file: Sarn Helen Memory Map Route File Login to Download
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Tracklogs Route file: Sarn Helen Tracklogs Route File Login to Download
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Route Profile:

234.2 Km (145.5 miles)
7,850 m (25,755 ft) ascent
474 m (1,555 ft)  maximum height