CPAT Regional Historic Environment Record
The following information is from the on-line database 'Archwilio'.
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True Blue, River Alyn

Primary Reference Number (PRN) : 18208
Trust : Clwyd Powys
Community : Cilcain
Unitary authority : Flintshire
NGR : SJ19306320
Site Type (preferred type first) : POST MEDIEVAL LEAD MINE

Description :
Lead (Early 18th-19th century)

Geology
Carboniferous Limestone.

Workings
Documentary evidence in the form of early leases deposited at CRO, Hawarden and referred to in Williams (1987) affirm the small-scale workings in this area on land owned by the Grosvenors on Mold Mountain.

The old True Blue Mine worked the eastern end of the Deborah vein in an area which is now part of the Loggerheads Country Park. The evidence of the old shafts are located in the woodland of Coed Pwll-y-blawd on the east bank of the River Alyn in the area of SJ19456320.

Four capped and fenced-off shafts were located on top of the limestone cliffs; two of which can be attributed to Glanalyn (SJ19706291) and two attributed to True Blue Mine (SJ19756305).

The shafts appear to have been ladder shafts or windlass.

The True Blue Adit was at SJ19306320 to the north of the Glan Alyn Adit (SJ19506290) on the east bank of the River Alyn.

Transport
No evidence.

Power
No evidence.

Processing
The dressing floor areas of the Glanalyn Mine lay along the banks of the River Alyn at SJ19606285.

Other features
No evidence.
(CPAT Metal Mines Survey)

Indistinct rectangular building platform
(CPAT Metal Mines Survey - ground survey)

Sources :
Clwyd Powys Archaeological Trust , 1995 , Site visit record - PRN18208

Events :

Related records

Compiled date : 31-12-1995


Archaeological data, from the Historic Environment Record, supplied by The Clwyd-Powys Archaeological Trust in partnership with Local Authorities, Cadw and the partners of ENDEX © CPAT, 2025 (and in part © Crown, 2025). It is intended to be used for private research only and is not for use as part of commercial projects. If you wish to use this information for publication in printed or multimedia form or to compile resources for commercial use, prior permission must be obtained in writing. Use of this information is subject to the terms and conditions of access to HER data published on CPAT's website. Please contact the HER if you have any further questions regarding this information. Please quote the Primary Reference Numbers (PRNs) in any correspondence.

April 20, 2025, 12:37 pm - File produced for Archwilio from CPAT's Regional HER.
Clwyd-Powys Archaeological Trust, The Offices, Coed y Dinas, Welshpool, Powys, SY21 8RP
tel (01938) 553670, email her@cpat.org.uk, website www.cpat.org.uk

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