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Cof Cymru: National Historic Assets of Wales · Wales

Milestone on A470

St. Harmon, Powys, Wales

A Grade II listed building in Dolhelfa, St. Harmon, Powys, designated on 14 December 2004.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Milestone on A470, St. Harmon, Powys, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
No class recorded
Date of designation
14 December 2004
Locality
Dolhelfa
Community
St. Harmon
Unitary authority
Powys
Country
Wales
Coordinates
52.34973, -3.57235
Cadw reference
83378

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1637 · Particular description of Wales. Cambria seu Wallia (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 179 Rhyader (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 14. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

On the E side of the road approximately 3km NW of Pont Marteg.

A mid C19 milestone first shown on the 1889 Ordnance Survey.

A freestone mile marker with segmental top, painted white. Inscribed in black-painted letters is 'Rhayader 5 miles' and 'Aberystwyth 29 miles.'

Listed for its special historic interest as one of a series of well-preserved C19 milestones on the A470 between Llangurig and Builth Wells.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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