It is now generally conceded that the wall or embankment at Aztalan, Wisconsin, concerning which so many wild theories have been promulgated, was simply a series of such house sites connected by a low ridge. The evidences of mysterious sacrificial altars seem to be due only to the destruction of such houses by fire.
In Wisconsin, also, and in Minnesota, are many small mounds apparently of this character which are due to an extinct tribe known to the Sioux and Chippewas as "The Ground House Indians."
In 1887 I became acquainted, at Munising, Michigan, with Mr. William Cameron. He was of the Scotch clan of Camerons, a nephew of a former Governor of Canada. Educated for a profession, he made a visit to relatives in Canada in early manhood, and the attractions of the wilderness proved so great that he never returned to his home. At the time I met him he was 84 years of age, in full possession of his mental faculties. For more than 60 years he had traversed the Lake region, his fur trading and trapping expeditions having carried him over all the country from Montreal to the mouth of the Mackenzie River. Much of his life had been spent among the Indians, especially the Sioux and Chippewas. He learned from them all they could tell him of their tribal history and former methods of living. The Chippewas told him that when they first came into the country they found the Sioux in possession, but finally, obtaining arms from the French, they drove the Sioux westward.
The "old men" of the Sioux corroborated this tradition and told Cameron that as they went westward they came to a race of people who lived in mounds which they piled up. These people were large and strong, but cowardly. "If they had been as brave as they were big," said the Sioux, "between them and the Chippewas we would have been destroyed; but they were great cowards and we easily drove them away."
Mr. B.G. Armstrong, of Ashland, Wisconsin, told me that he had taken great pains to investigate this tradition. From all that he could gather by much inquiry among the Indians and from his own observations, he was satisfied of its correctness. These people, whom the Sioux called Ground House Indians, built houses of logs and posts, over and around which they piled earth until it formed a conical mass several feet thick above the roof. Their territory extended from Lake Eau Claire, about 30 miles south of Lake Superior, to the Wisconsin River near Wausau or Stevens Point; down the Wisconsin a short distance; thence west into Minnesota, but how far he could not say; then around north of Yellow Lake back to the Eau Claire region. The Sioux exterminated the tribe, the last survivors being an old man and a woman who had married a Sioux. They were taken to the present site of Superior, near Duluth, and "died about 200 years ago"—that is, in the last quarter of the seventeenth century.
Gordon, an intelligent Indian living at the town of the same name, a short distance south of Superior, was familiar with this tradition, as were other Indians with whom I talked, and who accepted it as a well-known fact. Gordon related that he had heard "the old men" say these Indians erected their houses of wood and piled several feet of dirt over them; and they buried their dead in little mounds out in front of their houses and a few hundred feet away. He told of a mound that was opened near Yellow Lake in which the position and condition of the skeletons, two or three of children being among them, showed "as plainly as anything could" that they had been sitting or lounging around the fire, when the roof fell in and crushed them.
There is a "Ground House River" in eastern Minnesota, which probably derives its name from this people.
FOOTNOTES:
[1] Bushnell, D.I., jr., Archeology of the Ozark region of Missouri. Amer. Anthrop., n.s. vol. 6, no. 2, p. 298.