A larger earthwork was constructed behind the original position and remains intact.

They consisted of large earthworks that included deep trenches and dugouts with overhead protection.

From the church and nearby fortifications (including a large earthwork on its north side), the Royalists held their ground for two hours.

They created the large earthworks of dams and canals required to irrigate the rice fields.

In the south and east larger earthwork hill forts survive.

Portions of the old fortifications, including some large earthworks, are still visible.

The surrounding area has several large, ancient earthworks termed "geoglifos" by regional archaeologists.

The national park contains nationally significant archaeological resources, including large earthwork and mound complexes.

This smaller battery was removed following the construction of a larger earthwork approximately 50 feet behind (north).

As in other Mississippian-culture towns, the people built a number of large, complex earthworks.