About Marietta

Marietta is a city in and the county seat of Washington County, Ohio, United States. During 1788, pioneers to the Ohio Country established Marietta as the first permanent settlement of the new United States in the Territory Northwest of the River Ohio. Marietta is located in southeastern Ohio at the mouth of the Muskingum River at its confluence with the Ohio River. The population was 14,085 at the 2010 census. It is the second-largest city in the Parkersburg-Marietta-Vienna, WV-OH Combined Statistical Area. The private, nonsectarian liberal arts Marietta College is located here. It was a station on the Underground Railroad before the Civil War. Marietta is also the site of the prehistoric Marietta Earthworks, a Hopewell complex more than 1500 years old, whose Great Mound and other major monuments were preserved by the earliest settlers in parks such as the Mound Cemetery.

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