Mounds and Pyramids of the Americas

  Letchworth Mounds Archaeological State Park  is a 188.2 acre   Florida State Park  that preserves the state's tallest  prehistoric ,  Native American  ceremonial  earthwork   mound , which is 46 feet (14 m) high. It is estimated to have been built 1100 to 1800 years ago. This is one of three major surviving mound complexes in the  Florida Panhandle . It is believed to have been built by the  Weedon Island Culture  (200-800 CE), Native Americans who lived in North Florida. The hierarchical society planned and constructed massive earthwork mounds as expression of its religious and political system. Although the mound now has trees and underbrush growing from it, when originally built, such earthwork mounds were typically clear of vegetation, with smooth prepared sides. Many workers had to bring soils by basket to build the mound. The builders used their knowledge to combine a variety of soils and shells for stability, and ...