One of two extant effigy mounds in the Observatory Hill Mound Group, partially outlined by snow, beh
One of two extant effigy mounds in the Observatory Hill Mound Group, partially outlined by snow, behind Agricultural Hall, University of Wisconsin-Madison.Read more about Wisconsin effigy mounds: http://recollectionwisconsin.org/exploring-effigy-moundsvia: UW-Madison Collection, University of Wisconsin-Madison Archives by way of University of Wisconsin Digital Collections -- source link
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