Monday, 25 July 2022

Mapping Mountains – Trimble Surveys – Cilfaesty

 

31.05.22  Trehafren Hill (SO 100 910, previously Trimbled) 

LIDAR image of Trehafren Hill (SO 100 910)

It was turning dusk when Charles and I left the cinema in Newtown, we had boosted Charles’ P30 total with a quick visit to Beddau (SO 185 977) before the film and now Charles wanted another quick tick and Trehafren Hill was perfect to do this.

This hill is positioned close to the centre of Newtown and having last visited in July of 2021, I knew a way up.  However, Charles had come well prepared and with mobile phone in hand directed us toward the hill and proceeded to point us in the direction of a parking area which according to whatever he was looking at on his phone screen indicated the best way up the hill.  His phone was correct!

I parked and soon joined Charles who had walked through a gap between houses and was close to where a narrow gravelled path started up the hill.  We followed this as it snaked its way up, only leaving it to head up grassed paths which conveniently cut corners. 

On the summit of Trehafren Hill

It felt good to be visiting a hill at this time of day.  I am much more a morning person when hill walking and enjoy that cooling air of early morning when height can be gained before the heat of the day builds.  For such a hill as this that has little ascent, that need to set off early is not necessary, but the routine is now set firmly in place and has been for many years.

Considering that the weather had not been at all welcoming for the majority of the day with prolonged heavy rain, the evening was proving delightful.  It was not dramatic on top with illuminated cloudscapes, but there was a distinct sense of height having been gained as the flickering lights of Newtown began to cast their spell below.

We stayed on top for a few minutes before heading down following our inward route back to the awaiting car and then drove home to Welshpool for a well-earned mug of tea. 

 

Survey Result: 

 

Trehafren Hill (significant name change)

Summit Height:  152.8m (converted to OSGM15, from previous Trimble GeoXH 6000 survey)

Summit Grid Reference:  SO 10020 91073 (from previous Trimble GeoXH 6000 survey)  

Bwlch Height:  115.4m (LIDAR)

Bwlch Grid Reference:  SO 10146 90923 (LIDAR)

Drop:  37.4m (Trimble GeoXH 6000 summit and LIDAR bwlch)

Dominance:  24.50% (Trimble GeoXH 6000 summit and LIDAR bwlch)

 

 

For details on the survey of this hill

For further details please consult the Trimble Survey Spreadsheet

 

 

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