Archaeological sites · South Wales
Lost City of Trellech
In or near St Briavels.
Lost City of Trellech — a archaeological in wales-south, United Kingdom.

Clive Perrin — CC BY-SA 2.0 via Wikimedia Commons licence
Plan your visit
- Typical visit
- 45 min–1.5 h
- Nearest railway station
- Perrygrove · 9.0 km
- Free entry
- Dog-friendly
About
Lost City of Trellech is a archaeological located in wales-south, United Kingdom. Sourced from OpenStreetMap (ODbL licence); see local listings for visitor information, opening hours and admission details.
Photo gallery
Official information
The Lost City of Trellech is an archaeological project focused on excavating and understanding the historical significance of Trellech, once the largest settlement in medieval Wales. Visitors can participate in educational experience days that allow them to engage with the excavation process.
Protected designations
- Site of Special Scientific Interest: River Wye SSSI
- Site of Special Scientific Interest: Severn Estuary SSSI
- Area of Outstanding Natural Beauty: Wye Valley
Designations sourced from Natural England open data under OGL v3.
Place summary
The Lost City of Trellech is an archaeological site located in South Wales. It is notable for its extensive remains that suggest a once-thriving medieval settlement. The site provides insights into the historical landscape and urban development of the region.
AI-generated from the structured facts on this page (operator, designation, listing, era). Not a substitute for visiting.
- Coordinates
- 51.7414, -2.7235
- District
- Monmouthshire
- Parish
- Trellech United
- Postcode
- NP25 4PZ
- Parliamentary constituency
- Monmouthshire
- Phone
- 01291 625831
- Nearest railway station
- Perrygrove — 9 km
- Opening
- Experience Days available April–October; contact for specific dates.
- Official site
- www.lostcityoftrellech.org
Sources
- osm: way/938134321 (ODbL)
Other places nearby

Trelleck
Villages · 0.1 km

Harold's Stones
Archaeological sites · 0.3 km

Harold's Stones
Archaeological sites · 0.3 km

Tump Terrett
Archaeological sites · 0.4 km

Tump Terret Castle
Castles · 0.4 km

Tump Terret
Castles · 0.4 km

Trellech
National landscapes (AONB) · 0.4 km

Trellech Blast Furnace
Historic houses · 1.1 km

Beacon Hill
Mountains & hills · 1.1 km

Gaer hillfort, Trellech
Hill forts · 1.5 km

Gaer hill fort, Trellech
Vineyards · 1.5 km

Parkhouse Rocks
Mountains & hills · 1.6 km
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Frequently asked questions
- Where is Lost City of Trellech?
- Lost City of Trellech is in South Wales, United Kingdom (postcode NP25 4PZ), in the parish of Trellech United.
- What is Lost City of Trellech?
- Lost City of Trellech — a archaeological in wales-south, United Kingdom.
- How do I get to Lost City of Trellech?
- The nearest railway station is Perrygrove, about 9.0 km away. Drivers can use postcode NP25 4PZ.
- Is Lost City of Trellech a protected site?
- Yes — Lost City of Trellech is part of the River Wye SSSI Site of Special Scientific Interest and the Severn Estuary SSSI Site of Special Scientific Interest.
- Is Lost City of Trellech free to visit?
- Yes, Lost City of Trellech is free to enter.
- How do I get to Lost City of Trellech?
- Drivers can navigate to postcode NP25 4PZ. It sits within the Monmouthshire parliamentary constituency.