Croesor quarry

Moelwyn Mawr is a mountain in Snowdonia, North Wales and forms part of the Moelwynion. Its summit overlooks the Vale of Ffestiniog and has views in all directions.

Moelwyn Mawr North Ridge Top is a top of Moelwyn Mawr in Snowdonia, North Wales and forms part of the Moelwynion. From its summit, which directly overlooks Bwlch Rhosydd, can be seen Cnicht, Allt-fawr and Moel-yr-hydd. A recently discovered 'top' has only received attention from Nuttall baggers.

North West Wales (Welsh: Gogledd-Orllewin Cymru) is an area or region of Wales, commonly defined as a grouping of the principal areas of Conwy County Borough, Gwynedd and the Isle of Anglesey in the north-west of the country. These principal areas make up the entire preserved county of Gwynedd, and parts of Clwyd. It is bordered by Denbighshire, in North East Wales to the east, Powys, and Ceredigion in Mid Wales to the south, and the Irish sea to the north and west (as Cardigan Bay). It is the more mountainous, rural, and sparsely populated part of the north Wales geographic region. Settlements include: Bangor, Caernarfon, Colwyn Bay, Holyhead, Llandudno, and Pwllheli. The port of Holyhead serves as the major sea link between Wales and the Republic of Ireland. Snowdonia National Park is located wholly in the area, hosting Snowdon, the largest peak in Britain and Ireland excluding the Scottish Highlands. The area also hosts AONBs (Area of Outstanding Natural Beauty) in the Llŷn Peninsula and Isle of Anglesey, and the Castles and Town Walls of King Edward UNESCO World Heritage Site.

Craigysgafn is a rocky ridge and a top of Moelwyn Mawr that leads south from Moelwyn Mawr to Moelwyn Bach in Snowdonia, North Wales. It has several gullies which lead directly down to the scree slopes above Llyn Stwlan. Some scrambling is needed in places.

Rhosydd quarry was a slate quarry in the Moelwyn mountains, northeast of Porthmadog in North Wales. Small-scale working of the site began in the 1830s, but was hampered by the remote location, and the lack of a transport system to carry the slates to markets. The Rhosydd Slate Company was formed in 1853, and became a limited company in 1856. Transport was made more difficult by the attitude of the Cwmorthin quarry, through whose land the most obvious route to the Ffestiniog Railway ran. A solution was found in 1864, with the opening of the Croesor Tramway, to which the quarry was connected by one of the longest single-pitch cable-hauled inclines in Wales. Huge amounts of money were spent on development work, and the company, unable to make adequate returns, went into voluntary liquidation in 1873. The quarry was auctioned in 1874, and the New Rhosydd Slate Quarry Company Ltd. was formed. Unlike its predecessor, the directors were all Welsh, and three-quarters of the shareholders were also from the local area. The quarry prospered for a while, but then profitability declined, and in 1900, a large section of the underground workings collapsed. The job of opening up new areas was spearheaded by Evan Jones, who nearly succeeded, but was hampered by a slump in the slate industry and the onset of the First World War, when the quarry was "non-essential" and was mothballed. It reopened in 1919, but was in a poor financial position, and was bought by members of the Colman family, better known for producing mustard. They kept it running until 1930, but failed to find markets for the finished product. It was mothballed until 1947, when it was sold, but new plans to reopen it failed, and the pumps were turned off in 1948, after scrapmen had removed much of the machinery. Of the five slate veins in the region of Blaenau Ffestiniog, most of Rhosydd's output was extracted from the Old Vein. The workings started at the West Twll, where the rock outcropped, but the quarry soon developed into underground workings. A series of adits were constructed, to provide access as the mine got deeper, with the lowest at level 9. Trucks moved along this adit by attaching them to an endless chain, driven by a waterwheel. The mine eventually reached level 14, with rock raised by an internal incline to the level 9 adit. At its peak the quarry was one of the largest underground workings outside of Blaenau Ffestiniog, with 170 chambers.

Moelwyn Bach is a mountain in Snowdonia, northern Wales and forms part of the Moelwynion. It is connected to its parent peak Moelwyn Mawr via the Craigysgafn ridge. It overlooks the town of Blaenau Ffestiniog and the Vale of Ffestiniog.

Fron-Boeth and Pant Mawr quarries were two closely related and interconnected quarries on the western slopes of Moelwyn Mawr in Gwynedd (formerly Caernarfonshire), North Wales. Pant Mawr operated from around 1850 to 1879, and was partly re-opened in 1886 when it was amalgamated with Fron-Boeth. Both quarries closed during the First World War. Finished product was transported to the slate quays of Porthmadog by the Croesor Tramway.

Cnicht is a mountain in Snowdonia which forms part of the Moelwynion mountain range.

Cnicht North Top is a top of Cnicht in Snowdonia, which forms part of the Moelwynion mountain range. It is one of the Nuttalls, a list of 443 hills in England and Wales over 2,000 ft (610 m) with a relative height of at least 49 ft (15 m). The list was compiled by John and Anne Nuttall and published in 1993 as two volumes, "The Mountains of England & Wales".North Top is a bump on the north ridge; it is often bypassed by walkers heading for Ysgafell Wen, Moel Druman and Allt-fawr. Height in Metres: 688 metres

Conglog quarry was a small enterprise situated to the north-west of Tanygrisiau, near Blaenau Ffestiniog in Wales. It was overshadowed by the much bigger Rhosydd quarry a little further to the west. It was active from 1854 to 1910, and was operated by an individual, two partnerships and four separate companies over this period.

Moel-yr-hydd is a subsidiary summit of Moelwyn Mawr in Snowdonia, North Wales and forms part of the Moelwynion. (Strictly the mountain is not actually in the Snowdonia National Park as it falls within the exclusion "hole" around the former slate town of Blaenau Ffestiniog.) The mountain overlooks the village of Tanygrisiau and Tanygrisiau railway station (a halt on the Ffestiniog Railway) from where the mountain can easily be ascended.From the 1830s until 1946, Wrysgan Quarry was worked on the north east flank of the mountain. Substantial underground chambers were driven beneath the summit.

Ysgafell Wen is a subsidiary summit of Allt-fawr in Snowdonia, North Wales. It is the highest point on a broad ridge that stretches to the north-west of Moel Druman, and includes two other summits, Ysgafell Wen North Top. and Ysgafell Wen Far North Top.