Welcome to the Rhydymwyn Valley History Society.

Please note that DEFRA do not allow dogs on site. 

We are now beginning to become more active on the site.



  • The site is now open again for business as per the ‘new normal’ conditions for Covid precautions

  • Track and Trace is still in place

  • The recent heating issues have been resolved in the Field Study Centre, although it is necessary to keep the roller-door ajar to increase ventilation as per the Covid mitigations for the Study Centre. In the New Year DEFRA are hoping to have oxygen monitors installed in order to regulate the amount that we have to open the external roller-door. More details to follow in due course.

  • The Study Centre will be closed however on the 5th and 6th January for some additional engineering works to ensure they continue to work satisfactorily and be fully legally compliant for the future.

  • Unfortunately Building 45 has sustained some wind damage to the roofing materials and this has been made safe whilst the site was closed, and we are looking into what can be done to prevent more damage. Any works to this building will be dependent on the quotes we receive over the next few weeks.

  • The Woodland Walk is still closed until such time it takes to ensure that there are no residual obstacles or risk of further branches falling. DEFRA will report back to us in due course.

  • The Site will be open as normal over the festive period, except for closures on Xmas Day, Boxing Day and New Year’s Day.


Click here to get all the latest information


Click here for more info and to download booking form


Click here to find out more about Membership

The Rhydymwyn Valley History Society is an organisation which researches and promotes the operation of the former Ministry of Supply's Valley Works in the Alyn Valley at Rhydymwyn in North-East Wales.

The Visitor Centre, 17, Nant Alyn Road, RHYDYMWYN, CH7 5HQ

The RVHS Monthly Meetings are currently suspended

until further notice.

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Click on the image below to see a 360 degree view.