Ancient Monuments

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Cei Tyddyn Isa

A Scheduled Monument in Penrhyndeudraeth, Gwynedd

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Coordinates

Latitude: 52.9348 / 52°56'5"N

Longitude: -4.0412 / 4°2'28"W

OS Eastings: 262910

OS Northings: 339443

OS Grid: SH629394

Mapcode National: GBR 5T.M2V1

Mapcode Global: WH55M.WHTF

Entry Name: Cei Tyddyn Isa

Scheduled Date: 17 March 1980

Source: Cadw

Source ID: 3230

Cadw Legacy ID: ME108

Schedule Class: Industrial

Category: Quarry

Period: Post Medieval/Modern

County: Gwynedd

Community: Penrhyndeudraeth

Traditional County: Merionethshire

Description

A stone-built quay, approximately 200m long, on the N bank of the Afon Dwyryd. The surviving remains, which are well preserved, include the quay, 23 sets of landing steps, slate tying posts, a slipway at the N end of the quay, two roofed buildings and a row of hitching posts for pannier ponies and cart horses. At this quay Ffestiniog slates were loaded onto flat-bottomed craft for transport downstream. Predating the Ffestiniog railway, it is perhaps late 18th century in date.

The monument is of national importance for its potential to enhance our knowledge of modern industry. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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