This is the best publicly-accessible site for Frog Orchids Dactylorhiza viridis in Wales; however, in 2016 at the time of printing Sue Parker's book Wild Orchids of Wales, how, when and where to find them, negotiations between the quarry former owner and North Wales Wildlife Trust (NWWT) were ongoing (now completed). An addendum to the book is available as a free PDF download here...
Minera Quarry nature reserve is managed by North Wales Wildlife Trust (NWWT).
Maes-y-Ffynnon Rd, Gwynfryn, Minera, Wrexham LL11 3DE
Minera Quarry is only 1.5 miles from the centre of Minera. Head west through the village; Maes-Y-Fynnon Road, a left turn off Church Road, leads directly to the nature reserve, which has its own parking.
There are good tracks throughout the reserve, but some are steep and gravelly. There is disabled parking (accessed by a RADAR key) leading to a wheelchair- and pushchair-accessible path. There are no public toilets at this reserve.
Before NWWT took it over, the site was already well known for its Frog Orchids despite having no official public access. This former quarry has steep paths and drop-offs, but there are large and easy-going open areas where orchids are numerous and increasing due to good management by the Wildlife Trust. From mid June, Common Spotted-orchids and Fragrant-orchids carpet the ground, and in 2019 the scarce intergeneric hybrid (picture courtesy of Elaine Hagget) between these species was discovered.
Species known to occur at this site include:
...plus some Dactylorhiza hybrids.