Monday, 7 November 2011

Neath Barrow Mapped?

The original Trigonomic Survey uses Neath Barrow as one of its points.

The details are available in this book;

An account of the operations carried out for accomplishing a trigonometrical ... By William Mudge, Isaac Dalby, Thomas Colby, Great Britain. Ordnance Survey

Annoyingly the relevant map Plate VII isn't fully scanned - though presumably others will have a copy.

I'm not sure I understand the angles and distances figures in the attached scan

But I have mapped one place that is the stated distance (32882 feet) from the Beacon Hill Trig Point. - It is also about the right distance from Red Horn Hill, because that distance is given from Red Horn Clump which I don't know the exact position of.

There seems to be a second distance from Beacon Hill given (32869) feet, which is strange. And I am only guessing the Beacon Hill measurement is from where the Trig point was put up.

Frustratingly close to accurately pin pointing the Barrow,

View Neath Barrow? in a larger map


No comments:

Post a Comment