Clwyd Metal Mines Survey

True Blue River Alyn

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)