Friday 2 November 2018

Mapping Mountains – Trimble Surveys – Mynydd Sylen


01.08.18  Mynydd Llangyndeyrn (SN 482 132)

Mynydd Llangyndeyrn proved the best of the six hills that Suzanne and I visited during the day, as it retains the feel of a hill with grassland, heath and rocky outcrops predominating.  The hill is positioned between the towns of Caerfyrddin (Carmarthen) toward the north-west and Rhydaman (Ammanford) toward the east, and has been designated a Site of Special Scientific Interest (SSSI).

We approached from the convenience of the relatively high B4306 road that cuts across the southern and western slopes of this hill, and parked beside a fence close to a cattle grid and a few houses.

Blue sky dominated and gave tranquil warmth on our ascent which was via a paved lane designated a public right of way that led to a farm.  Although this route gives quick and easy access to the summit it is not one that I would recommend as the hill has so much more to offer and deserves time spent in its midst to fully appreciate.

As the track neared the first farm we headed up toward the summit via a path which swung north-eastward toward the white coloured trig pillar placed on the summit area of the hill.

Having not researched the hill prior to our visit the first ancient cairn we came across that incorporates a stone circle and main monolith was somewhat of a surprise, so much so that I wondered if it was a modern construction, it is not, and is a fine example of ancient culture.

As with may standing stones side on they are slender compared to front on (see below)

As I took a series of photographs of the ring barrow with its neatly set stone circle and central monolith Suzanne wandered up toward the summit, and proceeded northward toward another ancient cairn positioned in the heathland below the rocky outcrop and steep eastern sides of the upper section of the hill.

I soon headed toward the summit and set the Trimble up with its internal antenna aligned to its high point, and once data were being gathered then retraced my steps back to the ancient cairn.

The Trimble set-up position at the summit of Mynydd Llangyndeyrn

Such ancient constructions draw me in, I have no words to know why, but they do.  I again took a series of photographs with the trig pillar and Trimble giving a present day backdrop on what is still an ancient foreground.

An ancient forground as the Trimble gathers data in the present day background

Eventually I drew myself away and once 10 minutes of data were gathered and stored I closed the Trimble down, packed it away and headed to the lower heathland below, where Suzanne had walked and was now sitting on one of many rocky outcrops taking in the atmospheric nature of the hill and its surrounds.

Gathering data at the summit of Mynydd Llangyndeyrn

To our south was a large standing stone that had been obscured from view on our ascent, but it stood firmly upright with a path leading from where we now were down toward it, and which no doubt continued onward to where the car had been parked.

Suzanne beside the standing stone

Standing stones are always impressive when found in the hills, and this was no exception

This monolith could be seen from the summit and beckoned us to investigate, it did not disappoint.  It stands against a backdrop of grassland with bracken interspersed amongst rock outcrops and rises a full 2.7m (9ft) in height.  It is impressive and a stunning example of a Maen Hir.

We stood beside it for a number of minutes and then headed down following the continuation of the narrow path leading toward a gate and the modernity of tarmacked roads, cars and more hills to bag.



Survey Result:


Mynydd Llangyndeyrn

Summit Height:  263.0m (converted to OSGM15)

Summit Grid Reference:  SN 48237 13266

Bwlch Height:  90.6m (LIDAR)

Bwlch Grid Reference:  SN 52317 13775 (LIDAR)

Drop:  172.4m (Trimble summit and LIDAR bwlch)

Dominance:  65.54% (Trimble summit and LIDAR bwlch)







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