Hafod Garregog National Nature Reserve

The Croesor Tramway was a Welsh, 2 ft (610 mm) narrow gauge railway line built to carry slate from the Croesor slate mines to Porthmadog. It was built in 1864 without an Act of Parliament and was operated using horse power. The tramway was absorbed into the Croesor and Port Madoc Railway in 1865 and later became the Portmadoc, Croesor and Beddgelert Tram Railway in 1879. Part of its route, from Croesor Junction to Porthmadog, was taken over by the Welsh Highland Railway in 1922, and upgraded to allow the operation of steam locomotives. The remainder of the line continued as a horse-drawn tramway, and operated as such until the mid-1940s.

Croesor is a small village in Gwynedd, Wales, located at the foot of Cnicht, in Cwm Croesor, in the community of Llanfrothen. The Croesor Tramway travelled along the bed of the cwm, before rising steeply to Bwlch Rhosydd via Croesor Incline. To the south of the village is the site of Parc, which was the ancient estate of the Anwyl Family, with a claim to be the direct descendants in the male line of Owain Gwynedd, prince of Gwynedd. The primary language used is Welsh The Snowdonia Slate Trail between Beddgelert and Tanygrisiau passes through the village

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.

Parc (meaning Park in English) is the name of an ancient mansion found near the village of Croesor in the community of Llanfrothen near Penrhyndeudraeth, in Gwynedd, Wales. The former mansion has been in ruins since the end of the 17th century when the resident Anwyl Family moved to Llugwy. Thomas Nicholas described the site in his Annals and Antiquities of the Counties and County Families of Wales [see box]. The novelist, poet, and playwright Richard A.W. Hughes rented a cottage here from close friends Clough and Amabel Williams-Ellis during the summers from 1934 until the Second World War, eventually taking in six evacuee children and telling stories with them that are collected in Don't Blame Me! (1940). Parc is a Grade II* listed building and its gardens are designated Grade II on the Cadw/ICOMOS Register of Parks and Gardens of Special Historic Interest in Wales.

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

Yr Arddu is a large hill in Snowdonia, Wales (Not to be confused with the 589 metre Yr Arddu (North) to the east of Snowdon). It lies approximately 2.5 km south east of the village of Beddgelert and just over 1 km from the rather more famous mountain Cnicht. It is a rugged hill with widespread rock outcrops and cliffs. A small lake, Llyn yr Arddu, is located on the flanks of the mountain. The recognised summit is at 388m to the South of the hill, but the highest point, named Cerrig-y-Myllt on only the most detailed UK Ordnance Survey mapping, is at 463m above the two small lakes to the North of the hill. The craggy nature of the hill is due to the presence of lavas and tuffs (volcanic ash deposits) dating from the Ordovician period when Snowdonia was characterised by numerous volcanic eruptions; Yr Arddu is a particularly good location to see the record of Ordovician volcanism. The Yr Arddu Tuffs may be the earliest eruptive phase of the Lower Rhyolitic Tuff Formation.The whole hill is a site of special scientific interest designated by the Countryside Council for Wales.Yr Arddu is commonly approached by a footpath leaving the minor road that links Nantmor to Nant Gwynant running along the valley of Blaen Nanmor, but the final 0.5 km has no paths marked on UK Ordnance Survey mapping. However, a marked path runs South East from Nantmor Mountain Centre at Gelli-Iago. From this an intermittent rough path runs from West of Clogwyn Coch up to the two small lakes. The hill can also be approached with more difficulty from its West flank up to the small lake Llyn yr Arddu.

Parc Quarry was a compact underground slate quarry in the Croesor Valley, Gwynedd, North Wales. It was connected to the Croesor Tramway, which ran through the valley. The quarry concentrated on producing specialist slate products, rather than roofing slates, and was managed for much of the time by the innovator Moses Kellow. It operated for about 50 years, from 1870 to 1920.

Croesor quarry is a large underground slate mine in North Wales which was served by Croesor Tramway. Small scale quarrying began in the 1846, and by 1861, there were two companies in operation. They amalgamated in 1865, a year after the quarry was connected to the newly opened Croesor Tramway. Much money was invested in development work, but volumes of useful slate produced were small, amounting to just 226 tons in 1868. Access to the underground workings was by a single adit, and the surface mill was powered by two water wheels. A change of ownership in 1875 did little to improve the profitability of the quarry, and it closed in 1878 or 1882. In 1895, the quarry reopened under the direction of Moses Kellow, a fearless innovator who set about modernising working practices and methods. The two-man teams working in the mill were no longer tied to a two-man team working underground, which enabled the mill to operate more efficiently. Following trials with air drills, he decided instead to electrify the mill, building a large hydro-electric station, which generated three-phase alternating current, rather than the direct current recommended by British manufacturers. He obtained motors from Prague, which were used to drive winches and an electric locomotive, the first to work in Wales. The water wheels were supplemented by Pelton wheels, supplied by Gilbert Gilkes of Kendal. His greatest innovation was the Kellow drill, a hydraulic drill for which he obtained six patents between 1898 and 1915. It could drill a 7.5-foot (2.3 m) hole in the slate in under two minutes, much less than the day required using hand drills. The mine was ventilated by a Guibal fan, housed in a fan-house near the entrance to the adit. Peak output under Kellow's direction was between 5,000 and 6,000 tons per year, though it declined in the later years, until the quarry closed in 1930. The chambers were used by Cookes Explosives to store propellants from the late 1940s until the early 1970s. This ceased when the Central Electricity Generating Board became aware of it, and feared that an underground explosion would damage the dams of the Ffestiniog pumped storage power station. Both lakes were drained until the explosives had been removed. The quarry was worked on seven levels, but the three below the adit level are now flooded. There was an underground link to the nearby Rhosydd quarry, and the "Croesor Rhosydd Through Trip" is a well known, if somewhat dangerous, route for mine explorers.

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.

Rhyd is a small village in the Welsh County of Gwynedd, located on the B4410 road, halfway between Maentwrog and Llanfrothen. Situated on an elevated site within the Snowdonia National Park, the village has views of the Moelwyns, notably Moelwyn Bach. The village is located one mile from Tan-y-Bwlch railway station, one of the principal stops on the historic Ffestiniog Railway. Nearby is Llyn Mair.