Tuesday, 31 May 2016
A March Dyke
This wall is an example of one which can, to some extent, be dated. It follows the course of a burn which drains the northern slopes of Ben Hiant and disappears into the forestry that covers the slopes of Beinn nan Losgann. The picture shows it at bottom right, with Beinn na h-Urchrach in the background.
Bing satellite image. While it doesn't drain into Lochan Poll an Dubhaidh, the lochan is a useful feature in locating the wall. It's possible to zoom in to the pink area....
The wall can be seen to run along the boundary between Choiremhuilinn's common grazings and those of Tornamona, and it's right beside the point where the old road into Kilchoan crosses that boundary. So it's main use was probably to delineate the boundary between the two clachans. Such walls are called march dykes.
Since these clachans are probably hundreds of years older than Bald's map, this is likely to be a very old wall.