The Three Sisters Memorial Cairn
Introduction
The photograph on this page of The Three Sisters Memorial Cairn by Raibeart MacAoidh as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk
The Three Sisters Memorial Cairn
Image: © Raibeart MacAoidh Taken: 17 Sep 2016
This records the construction of the three meridian pillars on Green Hill known as The Three Sisters. Sir Thomas Makdougall Brisbane built The Three Sisters in 1808 as meridian sighting posts. From a smaller meridian pillar near his observatory in Brisbane Glen, he aligned his telescope with the Three Sisters and was able to establish due north, even though the north star wasn’t visible.
Images are licensed for reuse under creativecommons.org/licenses/by-sa/2.0
Image Location
Latitude
55.793554
Longitude
-4.861258