Platform mound
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A platform mound is any earthwork or mound intended to support a structure or elevate an activity. It typically refers to a flat-topped mound whose sides may be cylindrical or pyramidal, forming a fru
The Kincaid site in Massac County, Illinois, showing platform mounds. Illustration by artist Herb Roe.
A diagram showing the various components of Eastern North American indigenous ceremonial substructure mounds
Temple Mound at Ocmulgee National Monument
Monks Mound
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Monks Mound is the largest Pre-Columbian earthwork in the Americas and the largest pyramid north of Mesoamerica. The beginning of its construction dates from 900 to 955 CE. Located at the Cahokia Moun
Platform mound
…developed with separate levels (or terraces) and aprons, such as Emerald Mound, which is one large terrace with two smaller mounds on its summit; or Monks Mound, which has four separate levels and stands close to 100 feet (30 m) in height. Monks Mound had at least ten separate periods of mound construction over…
Monks Mound in summer. The concrete staircase follows the approximate course of the ancient wooden stairs
Monks Mound from the side showing the 2 terraces.
Looking over the Cahokia Mounds site from the top of Monks Mound