Lost knowledge re the mound builders

It is unutterably sad that so many mounds in North America (and elsewhere in the world) were destroyed in the process of creating new towns and settlements. This old newspaper clipping was posted at the Ancient Waterways bulletin board -

A mound that stood near the center of the town of Chillicothe, O., was fifteen feet high and sixty in diameter. In its demolition human bones were found in many places, and at the surface of the earth, upon pieces of bark, lay a single human skeleton covered with a mat and surrounded with various personal adornments and other articles, including a piece of copper in the shape of a cross. In a mound opened at Circleville was found a large mica mirror, three feet long, a plate of oxidized iron, and two skeletons covered with ashes and charcoal and surrounded by burnt bricks. These finds indicate that the mound builders were acquainted with many arts, and in some of them were quite expert. They certainly knew of the existence of copper on Lake Superior. Pieces of cloth have been found well preserved with some of the skeletons.

Lima Daily Times
Lima, Ohio
July 30, 1890