Inglis, H. R. G. (1924) “Ancient Border Highways: The Minchmoor (Catrail) Road, the Wheel Causeway, the Annandale Forest Road, the Well Path, and the Enterkin”, Proceedings of the Society of Antiquaries of Scotland, 58, pp. 203–223. doi: 10.9750/PSAS.058.203.223.