Marietta, OH

Marietta sits where the Muskingum meets the Ohio River in southeastern Ohio, making it the state's oldest permanent settlement. US Route 7 follows the Ohio River through town, connecting to Parkersburg, WV via I-77, while State Route 60 heads northwest to I-70. The Campus Martius Museum's blockhouse replica marks the exact spot where Revolutionary War veterans established Ohio's first organized settlement in 1788.