Washington County, Ohio

Devola is a census-designated place (CDP) in Washington County, Ohio, United States, along the Muskingum River. It is part of the Parkersburg-Marietta-Vienna, WV-OH Metropolitan Statistical Area. The population was 2,639 at the 2020 census.

Muskingum Township is one of the twenty-two townships of Washington County, Ohio, United States. The 2020 census found 4,424 people in the township.

Oak Grove is an unincorporated community in Washington County, in the U.S. state of Ohio.The Oak Grove Volunteer Fire Department has served the community since the 1950s.

The Colonel Joseph Barker House is a historic residence in Washington County, Ohio, United States. Located north of Marietta, in the Muskingum Township community of Devola, it has changed little since its construction in the early nineteenth century, and it has been designated a historic site.

Indian Run is a stream in the U.S. state of Ohio. It is a tributary to the Muskingum River. According to tradition, Indian Run was named from an incident when an American Indian went missing from his party after having boasted of the killing of a white pioneer settler.

Unionville is an unincorporated community in Washington County, in the U.S. state of Ohio.

Rainbow Creek is a stream entirely within Washington County, Ohio.Rainbow Creek, noted for its rainbow shape, lent its name to the community of Rainbow, Ohio.

Marietta High School (MHS) is a four-year, public, secondary school in Marietta, Ohio, United States. The school serves students in the Marietta City School District in grades nine through twelve. As of 2021–2021, the enrollment was approximately 1,100. Marietta's mascot is Tabby the tiger and its colors are orange and black. The school participates in both the Ohio Valley Athletic Conference and Twin State League. MHS is accredited by the North Central Association of Colleges and Secondary Schools and the Ohio Department of Education.

Rainbow is an unincorporated community in Washington County, in the U.S. state of Ohio.

W. P. Snyder Jr., also known as W. H. Clingerman, W. P. Snyder Jr. State Memorial, or J. L. Perry, is a historic towboat moored on the Muskingum River in Marietta, Ohio, at the Ohio River Museum. A National Historic Landmark, she is the only intact, steam-driven sternwheel towboat still on the nation's river system.

The Ohio River Museum is a museum that interprets the history of the Ohio River. The museum is situated on the Muskingum River, near its confluence with the Ohio River, in Marietta, Ohio. Opened on March 16, 1941, the museum celebrated its 75th anniversary in 2016.Among the museum's collection is the W.P. Snyder, Jr., the last steam-powered towboat on the river. The oldest remaining pilothouse is from the steamboat Tell City. The steamboat was built in 1889 and used to carry passengers and freight on the Ohio River. She was named after the city of Tell City, Indiana, on the banks of the Ohio River. She sank on April 6, 1917, in Little Hocking, Ohio. The pilothouse survived the sinking and is on display outside of the museum.The museum is located a block from the Campus Martius Museum. The Ohio River Museum is currently closed as a new museum will be constructed on the site. Partners in the new museum project include Ohio History Connection, Friends of the Museums dba Northwest Territory Museum Society, the Washington County Public Library and the Sons and Daughters of the Pioneer Rivermen.

The Ohio Company Land Office is one of the original buildings of the city of Marietta, Ohio, United States. The Office is listed individually in the National Register of Historic Places and as a contributing property to the Marietta Historic District. The Land Office was built after Ohio Company of Associates landed at Marietta in 1788. The Office was built at approximately 39°25′16.75″N 81°27′47.25″W. In 1791 the building was moved away from the Muskingum River so it could be protected by the guns of Campus Martius. From this location, Ohio Company surveyors plotted the company's entire purchase in southeastern Ohio, more than 900,000 acres (360,000 ha) in total, under the direction of Rufus Putnam as the company's chief. The building is a simple log structure with a gabled roof, pierced by a single chimney; one window is set into the side, and the front has space for just one window and the main entrance. Its location on a slope permits the slight exposure of the foundation on one side. Smaller elements include shutters for the windows and a pair of steps that provide access to the main entrance. As the oldest extant building anywhere in Ohio, the land office had become the focus of significant attention by the opening years of the twentieth century, with organizations such as Marietta's historical society devoting extensive effort to ensure its preservation.The building is now part of the Campus Martius Museum complex.