In between there was ‘Muscus coralloides perforatus’ [Reindeer Moss], which the local inhabitants rake together into great piles in rainy weather when the moss is tough and carry home in winter as cattle fodder. These heaths were surrounded by something akin to ramparts, as steep as could be and 30 to 40 feet high, and getting up and down them along the course of the road was very heavy work. They seemed to have a good deal in common with the mountain that Alexander the Great climbed with such difficulty. On such heaths there often lay a second heath, equally barren and similarly shaped in every way. They seemed very like glacial ridges except that they had an even surface on top. They also differed in scale and in teing free from stones. These heaths were from 5 to 7 miles in extent.