The late Loch of Dowalton was of an irregular form, about 1-1/2 mile long, and about 3/4ths of a mile in greatest breadth, and without any marked outfall for drainage. Sir William Maxwell effected this by making a cut, 25 feet deep, through the wall of whinstone and slate which closed it in at its south-eastern extremity. Dr. Stuart, who availed himself of Lord Lovaine's previous description of the island abodes that became visible on the drainage of the loch, describes them in order of succession, beginning at the west end:-- "The first is called Miller's Cairn, from its having been a mark of the levels, when the loch was drained by cuts for feeding neighbouring mills. One of these cuts is known to have been made at a remote period. It was still surrounded by water when the place was visited by Lord Percy in 1863. On approaching the cairn, the numerous rows of piles which surrounded it first attracted notice. These piles were formed of young oak-trees. Lying on the north-east side were mortised frames of beams of oak, like hurdles, and, below these, round trees laid horizontally. In some cases the vertical piles were mortised into horizontal bars. Below them were layers of hazel and birch branches, and under these were masses of fern, the whole mixed with large boulders, and penetrated by piles. Above all was a surface of stones and soil, which was several feet under water till the recent drainage took place. The hurdle frames were neatly mortised together, and were secured by pegs in the mortise holes. "On one side of the island a round space of a few feet in size appeared, on which was a layer of white clay, browned and calcined as from the action of fire, and around it were bones of animals and ashes of wood. Below this was a layer of fern and another surface of clay, calcined as in the upper case. A small piece of bronze was found between the two layers. On the top another layer of fern was found, but the clay, and the slab which probably rested upon it, had been removed. There can be no doubt that this had been used as a hearth. Near this cairn a bronze pan was found.... Lines of piles, apparently to support a causeway, led from it to the shore.