Roger Whitehead

Roger Whitehead

Posted on 09/03/2016


Photo taken on March 25, 2008


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Trig point, Hengistbury

Trig point, Hengistbury
Trig points, or triangulation pillars, were in pre-GPS days the basis of the Ordnance Survey's programme of mapping Britain. This BBC page describes their purpose and history (and has some impressive photos).

Here are details of the one in my picture, at Hengistbury Head, near Christchurch, in Dorset. It overlooks Poole Bay.

John FitzGerald, Henk Bouwers, Trudy Tuinstra, Joachim Schmidt have particularly liked this photo


Comments
John FitzGerald
John FitzGerald
Striking depth, and interesting information.
19 months ago.
Roger Whitehead has replied to John FitzGerald
Thanks.
19 months ago.