6 - Eyri ( Snowdon National Park ) - Misc
Conglog Quarry - Cwmorthin
A view over the Conglog Quarry barracks called Rhosydd Terrace.
The quarry worked from 1854 to 1909 but not a successful enterpise.
The quarry is reached by continuing up the picturesque Cwmorthin valley along the old Tramway . Rhosydd Quarry is at the top of the valley.
Out of the pic is the dressing shed and the slate pillars that carried water to the dressing shed.
Allt Y Ceffylau defines the north side of the valley with Llyn Cwmorthin and Cwmorthin Quarry spoil tips in the distance.
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Continue up the Cwmorthin valley, along the slate trail, as it climbs up to Rhosydd Quarry
Ref: NW 4676
Date: 28/07/2025
Location: SH 6684 4662
