Triangulation
Project info

This work is from the ongoing project to visit all 314 primary triangulation points that were built and measured between 1936 and 1962 by the Ordnance Survey for the ‘Retriangulation of Great Britain’.

Triangulation points ( or "trig points") are concrete pillars about 1.5 m high built usually, but not always, on high points in order to "triangulate" with at least two other pillars. This method enabled accurate measurement of distance which was vital for map making.

The project will provide a comprehensive survey of the British landscape and deals with issues of mapping, representations of the landscape, the layering of history, land use, ownership and boundaries.

The working method arrived at, after much experimentation, involves making two photographs that relate to each other: a 360 degree panorama, made by placing the camera on top of the trig point, and a locating photograph of the trig point.

The viewpoint is predetermined by the position of the trig point and this reduces the aesthetic decision-making. Notions of what makes a good photograph, which are heavily effected by cultural and educational background, and compositional choices, are reduced.