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Cof Cymru: National Historic Assets of Wales · Wales

Milestone at Craig y Gronfa

Glantwymyn, Powys, Wales

A Grade II listed building in Cwm Llinau, Glantwymyn, Powys, designated on 5 August 2004.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Milestone at Craig y Gronfa, Glantwymyn, 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
5 August 2004
Locality
Cwm Llinau
Community
Glantwymyn
Unitary authority
Powys
Country
Wales
Coordinates
52.69042, -3.68419
Cadw reference
83027

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 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 150 Dinas-Mawddwy (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Location

On the verge, c2.7km N of Cwm Llinau.

History

Probably C19 and associated with the turnpiking of this road.

Exterior

A rectangular slate pillar with chamfered top angles. It is inscribed with the following: Machynlleth / 11 miles / Mallwyd 2 / Pool 27.

Reason for designation

Listed for its special historical interest as a C19 milestone.

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
All No class recorded in Powys All Unitary authority Powys records All Wales Heritage registers Historical markers (US)National Register of Historic Places (US)
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