Watson Brake, Prehistoric mound complex in Ouachita Parish, United States.
The site contains eleven earthen mounds connected by ridges, forming an oval pattern with a diameter of 900 feet across the Louisiana landscape.
Built between 3500 and 2800 BCE, Watson Brake predates both Stonehenge and the Egyptian pyramids as the oldest known earthwork complex in North America.
The Evans culture inhabitants created sophisticated tools, including stone microdrills for bead making and geometric objects crafted from local materials.
Half of the archaeological site remains under private ownership by the Gentry family, who permit research activities under specific conditions.
The construction patterns at Watson Brake correlate with El Niño climate events, suggesting environmental factors influenced building periods.
Location: Ouachita Parish
Elevation above the sea: 22 m
GPS coordinates: 32.36840,-92.13140
Latest update: May 27, 2025 09:51
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