Union County

The Ellis Mounds are a complex of Native American mounds near Marysville in Union County, Ohio, United States. These three mounds form an east-west line on a small ridgeline in a farm field. Believed to have been built by Hopewellian peoples, the mounds are important because they may reveal information about daily life in the Hopewell culture. Archaeologists who study the Hopewell have generally concentrated on their largest ceremonial centers: as a result, while the mortuary customs of the Hopewell are well known, other aspects of their culture are little understood. For this reason, a site such as Ellis that bears the potential of yielding information about such aspects is valuable indeed, especially because its date has not yet been established: Ellis may have been built as early as 300 BC and as late as AD 600. Furthermore, the location of the mounds outside of the Hopewellian heartland farther south may demonstrate the spread of Hopewell influence, since excavations in numerous locations have demonstrated the necessity of assembling a complex society with many workers in order to construct the ceremonial mounds for which the Hopewell are well known.

Elmwood Place is a historic farmstead in the southwestern corner of Union County, Ohio, United States. Located along State Route 161 near the community of Irwin, the farmstead comprises six different buildings spread out over an area of 9 acres (3.6 ha).

The Reed Bridge, near Marysville, Ohio, United States, was a Partridge truss covered bridge. It was listed on the National Register of Historic Places in 1975.

Adena Pointe is an unincorporated community in Paris Township, Union County, Ohio, United States. It is located just South of Marysville along Weaver Road.

Fairbanks High School is a public high school in Milford Center, Union County, Ohio, United States, and the only high school in the Fairbanks Local School District. The school's colors are red and white, and the mascot is the Panther.

The Marysville Motorcycle Plant was a Honda manufacturing facility located eight miles northwest of Marysville, Ohio. The assembly plant opened in 1979 as American Honda Motor Company's first production facility in the United States. It was on the original U.S. Route 33, renamed Honda Parkway when the Route was moved, at the site of an abandoned Pure Oil gas station and a long since razed "lubritorium," and the former rail crossing of the abandoned Erie Lackawanna Marion-Springfield spur.

New California is a census-designated place in central Jerome Township, Union County, Ohio, United States. It is located at the intersection of U.S. Route 42 and Industrial Parkway, just south of 42's intersection with U.S. Route 33. The population was 2,225 at the 2020 census.

The Fort is a prominent historic house in the central portion of the U.S. state of Ohio. Located northeast of the village of North Lewisburg in Union County, this two-story brick building is a local landmark. Built in 1877, it is a square structure, measuring five bays wide on each of its sides. Its foundation is built of ashlar stone, while the hip roof is constructed of imbricated slates of multiple colors. The house's hilltop location makes it visible from a vast distance in all directions. Many of its impressive Italianate architectural elements, such as the ornamental cornice and carven stone lintels, can be distinguished from far away, especially as the house is surrounded by farmland rather than woods. Porches are located on both sides of the house's front of the house, with a two-story bay window placed in the middle of the facade. Chimneys stand at the tops of both side walls.

Homer is an extinct town in Union County, in the U.S. state of Ohio.

WDLR (1270 AM) is a commercial radio station licensed to Marysville, Ohio. The station primarily serves the Union County region, with limited coverage in the Columbus market. The station is under ownership of Brent Casagrande through licensee Delmar Communications, Inc, and features a locally programmed classic hits format.