Location: Catbrook Road, Trellech, Monmouthshire NP25 4PE. On Google Map – Search for Lost City of Trellech
Dates: Excavation Weekends 1st April to 29th October. Summer Dig – 4 weeks from 15th July to 13th August
Cost: Excavation Weekends - £75 per year. Annual Dig - £50 per week.
Age: No age limits. The dig is suitable for children. Younger children should be accompanied by an adult.
Training / Experience: No experience necessary.
Accommodation: Yes - camping
Organization: Trellech Trust
Name: Stuart Wilson
Address: King’s Lodge, 17 Mathern Road, Bulwark, Chepstow NP16 5JT
Email: [email protected]
Telephone: 01291 625 831


Trellech Excavation in 2015. (Photo: Stuart Wilson).

The Lost City of Trellech Excavation is an ongoing research dig to understand a settlement that was once the largest in Wales in medieval times. Over more than 10 years we have discovered the remains of several properties including a fortified moated manor house which again will be the focus for this year’s excavations.

Last year we also found evidence of Neolithic activity below the medieval horizon and will be exploring more of this layer. The site has been the focus of recent worldwide media interest and has also featured on several TV programmes in recent years including the Digging for Britain Series. Weekend Excavations start on the 1st April and occur every weekend (except during the Summer Dig) before concluding on the 29th October.

The cost is £75 per person per year. The Summer Dig runs for 4 weeks continuously from 15th July to 13th August. Cost of £50 per person per week. We also run Experience Days – for those who just want to give archaeology a try. Cost of £50 per person or discounts for groups. All information is available via our website


  1. john donnelly
    April 23, 2014 @ 7:24 am

    Dear sir/madam
    My wife and i will be holidaying near you in july,
    And as we will be traveling from Australia we are very keen to try this project out.
    Could please advise the best way we can register.
    Kind regards
    John Donnelly


    • Carly Hilts
      April 30, 2014 @ 11:17 am

      Hi John, thanks for getting in touch.

      Best thing to do is to contact Monmouth Archaeology Society directly:

      Best wishes,



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