[ApplegateRanch]

unprecedented warmth is thawing burial mounts from a lost nomadic civilization—the Scythians.

Is this what they mean by a "burial mount?"

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[gleeaikin]

Here is one story of a frozen 2,400 year old body found in a mound: https://en.wikipedia.org/wiki/Siberian_Ice_Maiden

Here is a link for many items shown at “Scythian Burial Mounts”:

https://www.google.com/search?q=scythian+burial+mounds&num=50&newwindow=1&safe=off&tbm=isch&tbo=u&source=univ&sa=X&ved=0CCoQsARqFQoTCPKmn8PB4McCFYF6Pgod8_gJ8w&biw=1600&bih=755