Sugar Loaf Mountain on the eastern fringes of the Brecon Beacons National Park. The Trigpoint sits on the top of the peak. The view is of the Black Mountains.

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Tags:   Mountain Landscape Countryside Brecon Beacons Sugar Loaf Nikon D90 Wales UK Trig point

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Sugar Loaf Mountain on eastern edge of the Brecon Beacons National Park.

Sugar Loaf Mountain is one of the summit peaks of the Black Mountains, its height is 598 metres and the view from the summit covers the Black Mountains and reaches as far as the Brecon Beacons to the west and the Bristol Channel to the south. All were visible on the day.

Trigpoints are the common name for "triangulation pillars". These are concrete pillars, about 4' tall, which were used by the Ordnance Survey in order to determine the exact shape of the country. They are generally located on the highest bit of ground in the area, so that there is a direct line of sight from one to the next. By sitting a theodolite (an accurate compass built into a telescope) on the top of the pillar, accurate bearings to nearby trigpoints could be taken. This process is called "triangulation".

A major project to map out the shape of Great Britain began in 1936. The network of triangulation pillars, with accurately known positions, led to the OS maps which we use today.

Tags:   Mountain Landscape Countryside Brecon Beacons Sugar Loaf Nikon D90 Wales UK

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Tags:   Landscape Countryside Brecon Beacons Sugar Loaf NIkon D90 Wales UK

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Tags:   Mountain Landscape Countryside Brecon Beacons Sugar Loaf Nikon D90 Wales UK

© All Rights Reserved