The Gaelic An clach thuill has been changed to give the anglicised version Clachtoll. Clachtoll is a crofting township in Sutherland North-west Scotland with a population of 31. The land is mainly used for sheep production. The sheep
outnumber the people by 25:1. Some of the "in-bye" land, that is the land around the houses, is used for growing vegetables, a little hay, and for chickens. There are also a few horses and a herd of pedigree Highland Cattle.