The engineering accomplishments of the Poverty Point civilization are nothing short of astounding. Mound A, the largest of the earthworks, required an estimated 15.5 million basket loads of soil ...

Mapping an ancient site. In the spring of 2023, when the snow cover was gone but the leaves had not yet emerged, Dr. McLeester and her team conducted a drone-based LIDAR survey over some 330 ...

During the Cretaceous, a shallow inland sea called the Western Interior Seaway split North America into two landmasses—and the giant reptile’s fossils have been found on both sides of it. This ...

For example, when Euroamericans found impressive earthworks in various parts of North America, they postulated the existence of an ancient, extinct race they called Mound Builders, who must have ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust above it to "drip" and suck down rocks from across the continent.

It's likely that ancient peoples returned to the area for hundreds, if not thousands, of years for mound building during the Woodland period, Oberreuter said, which occurred between 2,500 and 900 ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust above it to "drip" and suck down rocks from across the continent.

A study published in the journal Nature Geoscience has revealed a subtle yet significant phenomenon beneath the North American continent; its ancient bedrock is slowly dripping into the Earth’s ...

Scientists have discovered that a tooth found near Old Crow, Yukon, in 2018 belonged to the oldest known woolly mammoth in North America. The discovery challenges the popular belief that mammoths ...

Perhaps the most famous mounds in North America are the 80-odd that make up Cahokia, an Indigenous settlement in Illinois that was larger than London in 1250 CE.