20.03.17
Cefn Digoll (SJ 275 084)
The northern section of Cefn Digoll (SJ 275 084) |
My mother once told me
that when she married and moved to Welshpool one of the first things my father
did was point toward the hill to the east of the town and say ‘that is the Long
Mountain’. This hill dominates the view
to the east and forms a natural barrier that over the years has been exploited
as a boundary between the Welsh and English, with the modern border running on
the eastward side of the broad summit ridge.
The hill is known in Welsh as Cefn Digoll, which can be translated in to
English as the unbroken mountain. The high point is known as the Beacon Ring or
Caer Digoll in Welsh and has mixed woodland submerging its triangulation pillar,
with the remains of an impressive Iron Age earthen embankment encircling the
summit area.
Although the high point
of Cefn Digoll is well known and visited by many people each year, the extended
hill also has another prominent summit towards its north, this latter summit is
almost forgotten but affords good views and quiet surrounds. However, its high point is not on open access
land so permission to visit should be sought.
This northern summit of
Cefn Digoll is one of the closest P30 hills to where I live, and yet up until
today I had never visited. The morning’s
rain persisted until early afternoon with damp grey sky slowly ebbing to the
first sign of blue as I joined Ed in the Royal Oak for an hour’s catch up over
coffee. Once back home I decided to head
out and quickly packed all necessary gear.
The broad summit ridge
of Cefn Digoll has a minor lane running from south to north which affords a
high starting point if so wished. I
parked in a mud strewn lay-by close to the paved access lane to the Longmountain
Farm. Before venturing up the lane I
chatted with a man who was digging a hole to erect a farm sign, he was the
brother of the farmer from the Longmountain Farm and grazed some of the lower
fields on the hill. We chatted at length
before I continued up the access lane toward a public footpath that heads across
a couple of fields.
Ahead, the sun skimmed
off the lower fields of the Severn valley which shone silver like without
detail but with a friendly embrace. I
followed the footpath before heading toward the hill’s high point using gates
to gain access. Once on the summit I
assessed the lay of land and chose the clump of grass I judged to be the
highest, and then set the Trimble on top of my rucksack after taking a
measurement offset from its internal antenna to the ground at the base of the
rucksack and stood back whilst five minutes of data were gathered.
The view of the Breiddin from the summit of Cefn Digoll (SJ 275 084) |
Gathering data at the summit area of Cefn Digoll (SJ 275 084) |
Once I packed the
Trimble away I headed toward the adjacent field where a mast rose skyward, a
gate then led me in to the yard of Longmountain Farm. I knocked on a couple of doors and spoke to
the mother in law of the farmer, and just as I thanked her for her time and was
about to set off back to my car a vehicle pulled up, the first words weren’t
encouraging; ‘you shouldn’t be here you know, what are you doing here?’ Karen and Brian Morris were rightly
questioning what I was doing wandering around in their yard; I introduced
myself and explained that I’d met Brian’s brother at the end of the paved lane
and that I was interested in place-name research for the Welsh hills and
particularly for the high point of their hill.
We chatted for 20 minutes or so and I left with smiles and a wave
goodbye.
Karen and Brian Morris of Longmountain Farm |
The view of the bwlch with the Stiperstones in the background |
By the time I reached
the bottom of the paved lane Brian’s brother was hard at work digging out a
trench to insert a water pipe having erected his farm sign, we chatted again
and I asked permission to visit the adjacent field having already explained the
fineries of the Trimble. A few minutes
later having assessed the land at the bwlch, the Trimble was atop my rucksack
gathering its all-important data.
Gathering data at the bwlch |
The bwlch consists of a
large greened field with a pond like puddle close to where I judged the
critical point to be placed. As the
Trimble gathered its customary five minutes of data I wandered the periphery of
the pond and took in the view as the low sun cast illuminated colour on the
land.
Packing the Trimble away
I walked back to the gate and the minor lane toward my car. It had been an enjoyable 1½ hours
mainly spent waiting for the Trimble to gather its allotted data and chatting
with local farmers, an excellent way to spend an afternoon.
LIDAR image of Cefn Digoll (SJ 275 084) |
Postscript:
Since the survey of this hill full LIDAR coverage is now available. The LIDAR (Light Detection & Ranging) technique produced highly accurate height and positional data that is now freely available for England and Wales. Consequently the numerical details for this hill has been analysed using this technique, resulting in the LIDAR height and position for the summit of this hill prioritised over that produced by the Trimble GeoXH 6000.
Survey Result:
Cefn Digoll (significant name change)
Summit Height: 381.6m (LIDAR)
Summit Grid Reference: SJ 27538 08462 & SJ 27541 08460 & SJ 27543 08461 (LIDAR)
Bwlch Height: 343.1m (converted to OSGM15, Trimble GeoXH 6000)
Bwlch Grid Reference: SJ 27824 07953 ( Trimble GeoXH 6000)
Drop: 38.5m (LIDAR summit and Trimble GeoXH 6000 bwlch)
Dominance: 10.09% (LIDAR summit and Trimble GeoXH 6000 bwlch)
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