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Mynydd Hendre-ddu
Forest road on Mynydd Hendre-ddu - geograph.org.uk - 1453565.jpg
Road on the flank of Mynydd Hendre-ddu
Highest point
Elevation 379.5 m (1,245 ft)
Listing Hendre-ddu mountain
Naming
Language of name Welsh
Geography
Location Gwynedd, UK
Parent range Snowdonia

Mynydd Hendre-ddu (which means Hendre-ddu Mountain in Welsh) is a mountain in southern Snowdonia, Wales. It stands at about 379.5 meters (1,245 feet) high. This mountain is part of a chain of peaks that stretch from Mynydd Dolgoed in the north down to Mynydd Gwyn in the south.

Mynydd Hendre-ddu acts like a natural dividing line for water. It separates streams that flow southwest into the Afon Dulas river from those that flow north and east into the River Dyfi. This makes it an important "watershed" in the area.

About Mynydd Hendre-ddu

Mynydd Hendre-ddu is known for its unique features. It is one of the mountains in the Dyfi hills region. This area is famous for its beautiful landscapes and outdoor activities.

Special Features of the Summit

The very top of Mynydd Hendre-ddu has something interesting to see. There are several parallel ridges that run across it. These ridges are about 80 centimeters (31 inches) wide and 130 meters (426 feet) long. They make the summit look quite unusual.

Disused quarry, Dyfi Forest - geograph.org.uk - 1453578
The old Hendre Ddu slate quarry on the mountain's northern side.

The Old Hendre Ddu Quarry

On the northern side of Mynydd Hendre-ddu, there was once a busy place called the Hendre Ddu slate quarry. A quarry is where stone, like slate, is dug out of the ground. Slate from this quarry was used for things like roofing tiles.

To move the heavy slate, a special railway called the Hendre-Ddu Tramway was built. This tramway connected the quarry to the village of Aberangell. It helped transport the slate to other places. Today, the quarry is no longer active, but you can still see its remains.

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