Quarry set into E slopes of Afon-y-Dolau-gwynion valley, c.230m N-S by 120m extraction area, with tips extending c.360m down the valley.
Linked to Vyrnwy dam construction site by c.2.0km tramway (Nprn309728), depicted on OS County series (1891).
Magazine located at SJ02082056.
Associated with:
Dam (Nprn32442).
RCAHMW AP955022/55; 955023/58
J.Wiles 07.01.04