She also said mound builders built about 10,000 mounds in the Mid-Ohio Valley alone, but only about 1,000 of the mounds are known. Most are on private property and are really small and not easily ...

Castle archaeologist Wes Clarke discusses the Conus mound in Marietta’s Mound Cemetery. It’s associated with the Adena culture, which was active in the Mid-Ohio Valley around 800 B.C. to A.D. 100.

Marietta, with a population of about 13,400, is an easy 2 ½ hour drive from Cleveland, just off I-77 before you cross the Ohio River into West Virginia. The two rivers define the town – and ...

A network of ancient American Indian ceremonial and burial mounds in Ohio described as "part cathedral, part cemetery and part astronomical observatory" was added Tuesday to the list of UNESCO ...