Rhobell Fawr is the site of an ancient

volcano A volcano is a rupture in the Crust (geology), crust of a Planet#Planetary-mass objects, planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and volcanic gas, gases to escape from a magma chamber below the surface. On Ear ...

that was active during the Early

Ordovician The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. T ...

period in the

Arenig In geology, the Arenig (or Arenigian) is a time interval during the Ordovician period and also the suite of rocks which were deposited during this interval. History The term was first used by Adam Sedgwick in 1847 with reference to the "Arenig ...

range within the

Snowdonia National Park Snowdonia or Eryri (), is a mountainous region in northwestern Wales and a national park of in area. It was the first to be designated of the three national parks in Wales, in 1951. Name and extent It was a commonly held belief that the nam ...

. Despite its modest height of 734 m (2,408 feet), it is a

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually highe ...

with views of higher peaks all around, including the north face of

Cadair Idris Cadair Idris or Cader Idris is a mountain in the Meirionnydd area of Gwynedd, Wales. It lies at the southern end of the Snowdonia National Park near the town of Dolgellau. The peak, which is one of the most popular in Wales for walkers and h ...

and distant Snowdon. The paths are not well trodden, but there is a distinct path up from Bwlch Goriwared, a couple of miles north-north-east of the small village of

Llanfachreth Llanfachreth is a settlement approximately three miles north-east of Dolgellau, Gwynedd, in the community of Brithdir and Llanfachreth within the historic boundaries of Merionethshire ( cy, Meirionnydd, Sir Feirionnydd), Wales. History Llan ...

References

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External links

www.geograph.co.uk : photos of Rhobell Fawr and surrounding area
Mountains and hills of Snowdonia Marilyns of Wales Nuttalls Hewitts of Wales Volcanoes of Wales Ordovician volcanoes Brithdir and Llanfachreth Mountains and hills of Gwynedd