A Gathering of the Eagles

Geometry and Possible Calendar Functions at The Ghost Eagle Site (Richland Country, Wisconsin) By: Prof. James P. Scherz Madison, Wisconsin This report addresses geometry and possible calendar functions at the effigy mound group located on the north bank of the Wisconsin River, near Muscoda, Wisconsin. In the 1800’s this extremely impressive group of eagle mounds Read More

What We Have Learned from Surveying Effigy Mounds

By James P. Scherz For talk at AES Meeting on January 17, 2015 Our surveys of the Indian mounds since about 1980 have revealed meaningful geometry in angles to an accuracy approaching 0.1 deg. (6 minutes of angle). Our surveys were controlled by celestial observations to an acc4Tacy of better than 0.01 deg. Meaningful distances Read More