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Milestone at Trallwm

A Grade II Listed Building in Treflys, Powys

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Latitude: 52.1752 / 52°10'30"N

Longitude: -3.6348 / 3°38'5"W

OS Eastings: 288303

OS Northings: 254251

OS Grid: SN883542

Mapcode National: GBR YC.511P

Mapcode Global: VH5D6.YL8C

Entry Name: Milestone at Trallwm

Listing Date: 30 October 2000

Last Amended: 30 October 2000

Grade: II

Source: Cadw

Source ID: 24365

Building Class: Communications

Location: Approximately 1.1km WNW of Pantycelyn Chapel on the S side of a minor road between Beulah and Abergwesyn.

County: Powys

Community: Treflys

Community: Treflys

Locality: Trallwm

Traditional County: Brecknockshire

Find accommodation in
Llanwrtyd Wells


The present road between Beulah and Abergwesyn was built in the third quarter of the C19, largely at the instigation of Henry Thomas. The new road was laid out on a more favourable gradient than the earlier road shown on the 1841 Tithe map and was diverted away from Thomas' own house at Llwynmadoc. The milestones all date from the construction of the new road and are shown on the Ordnance Survey of 1888.


A dressed milestone with a rounded top. The face is engraved: 'Garth 6, Abergwesyn 2 1/2, Llanwrtyd 7 3/4'.

Reasons for Listing

Listed for group value as one of a series of 4 mid C19 milestones marking the diversion of the local road by a prominent local landowner.

Other nearby listed buildings

  • II Pantycelyn Baptist Chapel
    An isolated chapel 2.6km NW of Eglwys Oen Duw, set above the E side of a minor road between Beulah and Abergwesyn.
  • II Milestone S of Pantycelyn Chapel
    Approximately 350m SSE of Pantycelyn Chapel, on the E side of a minor road between Beulah and Abergwesyn.

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