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  2. Platform mound - Wikipedia

    en.wikipedia.org/wiki/Platform_mound

    These platform mounds are usually four-sided truncated pyramids, steeply sided, with steps built of wooden logs ascending one side of the earthworks. When Europeans first arrived in North America, the peoples of the Mississippian culture were still using and building platform mounds.

  3. Cahokia - Wikipedia

    en.wikipedia.org/wiki/Cahokia

    Monks Mound is the largest structure and central focus of the city: a massive platform mound with four terraces, 10 stories tall, it is the largest man-made earthen mound north of Mexico. Facing south, it is 100 ft (30 m) high, 951 ft (290 m) long, 836 ft (255 m) wide and covers 13.8 acres (5.6 ha). [ 108 ]

  4. Monks Mound - Wikipedia

    en.wikipedia.org/wiki/Monks_Mound

    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 Mounds UNESCO World Heritage Site near Collinsville, Illinois, the mound size was calculated in 1988 as about 100 feet (30 m) high, 955 feet (291 m) long including the access ramp at the southern end ...

  5. Mound Builders - Wikipedia

    en.wikipedia.org/wiki/Mound_Builders

    A mound diagram of the platform mound showing the multiple layers of mound construction, mound structures such as temples or mortuaries, ramps with log stairs, and prior structures under later layers, multiple terraces, and intrusive burials. The namesake cultural trait of the Mound Builders was the building of mounds and other earthworks.

  6. Medora site - Wikipedia

    en.wikipedia.org/wiki/Medora_Site

    The main part of the Medoras site is a pyramid and plaza arrangement. Mound A is a platform mound about 125 feet (38 m) to 130 feet (40 m) at the base and 10 feet (3.0 m) high. The sides sloped inward toward the top, which is flat, except for a conical projection 25 feet (7.6 m) in diameter in the northeast corner of the summit that raises the ...

  7. Earthworks (archaeology) - Wikipedia

    en.wikipedia.org/wiki/Earthworks_(archaeology)

    Platform mounds are pyramid or rectangular-shaped mounds that are used to hold a building or temple on top. [6] An effigy mound is a pile of earth, often very large in scale, that is shaped into the image of a person or animal, often for symbolic or spiritual reasons [7] An enclosure is a space that is surrounded by an earthwork. [8]

  8. Gatlin Site - Wikipedia

    en.wikipedia.org/wiki/Gatlin_Site

    The site is the largest in the area and was home to over 500 people. Its importance is indicated by the presence of two ceremonial ball courts and one of the earliest platform mounds known. [4] The mound is notable as being one of only few excavated and documented Sedentary Period platform mounds still relatively intact. [2]

  9. Marietta Earthworks - Wikipedia

    en.wikipedia.org/wiki/Marietta_Earthworks

    The Quadranaou was the largest of the platform mounds at the site and was originally 180 feet (55 m) in length by 32 feet (9.8 m) in width and stood 10 feet (3.0 m) in height. The mound had four graded ramps leading to the summit located at the midpoint of each side, each being 25 feet (7.6 m) in width and 60 feet (18 m) in length.