Triggarna

Triggarna, also known as trig points, are a network of triangular points established by the Ordnance Survey (OS) in Great Britain and Ireland. These points are used as a framework for mapping and surveying purposes, providing a consistent and accurate reference system for geographical data. Each trig point is marked by a small, triangular, metal or concrete monument, typically located on hills, mountains, or other prominent features. The network of trig points is known as the National Trigonometrical Network (NTN) in Great Britain and the National Trigonometrical Survey (NTS) in Ireland. The first trig point was established in 1781, and the network has since been expanded and updated to meet the needs of modern surveying and mapping. Trig points are not only used for mapping and surveying but also serve as a popular destination for hikers, walkers, and other outdoor enthusiasts. Many trig points are accessible via public footpaths or trails, offering stunning views of the surrounding landscape. In addition to their practical uses, trig points also hold historical and cultural significance, representing a legacy of scientific and engineering achievement. Today, trig points continue to play a vital role in the field of geography and are an important part of the UK and Ireland's heritage.