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The State Line Archeological District (also known as the State Line site) is a complex of archaeological sites and national historic district located west of Elizabethtown, Ohio, United States. Located on both sides of the Indiana/Ohio border, the historic district is composed of five contributing properties spread out across 8 acres (3.2 ha) of land. It is believed to have been the site of a village of the Fort Ancient culture of prehistoric Native Americans. Radiocarbon dating has revealed that State Line was occupied at approximately the same time as the SunWatch site near Dayton, Ohio and the Turpin site at Newtown, Ohio, while post-excavation analysis has shown that the inhabitants of the three sites were all members of the same culture.: 113–114  Occupation of these sites is believed to date from the Middle Fort Ancient period of the thirteenth century AD.: 91 A leading part of the district is a village site, also known as the "Henry Bechtel Village"; it includes a wide midden and a cemetery. Plowing of the fields at the village site has frequently turned up a wide range of artifacts, including burial pits, hearths, and trash pits. Ceramics found during excavation at the site have typically been tempered with shells. This pottery shares many characteristics with that produced by Middle Mississippian cultures, such as distinctive styles of painting and the presence of pottery modelled after owls and the heads of humans.Because the midden is wide but quite shallow, it has been proposed that the village's population was significant but its period of occupation was short.Among the district's contributing properties are three small burial mounds, which appear to be the work of earlier mound building peoples. At one time, the site comprised five mounds, but only three remain within the district's boundaries.In 1975, State Line was listed on the National Register of Historic Places for its archaeological significance.

Lawrenceburg Junction is an unincorporated community in Dearborn County, Indiana, in the United States.It took its name from Lawrenceburg.

Thomas Miller House is a registered historic building near Elizabethtown, Ohio, listed in the National Register on November 2, 2000.

Hardinsburg is an unincorporated community in Lawrenceburg Township, Dearborn County, Indiana.

The Wesley Butler Archeological District (designated 33HA249) is a historic district composed of a group of archaeological sites in the southwestern corner of the U.S. state of Ohio. Located south of Elizabethtown, the district comprises three Native American mounds and the site of a Native American village, spread out over an area of 40 acres (16 ha). Although the mounds are built atop part of the village site, they are not contemporaneous: the mounds were built by Woodland peoples, but the village dates from the far older Archaic period.In the late 1950s, an archaeological field survey visited the site repeatedly. Comparatively few artifacts were found: only scrapers, an axe, and tiny projectile points were found, all in tiny numbers, although numerous pieces of chert were discovered with evidence that humans had worked them. The survey found absolutely no pottery whatsoever, confusing the surveyors and leading them to suggest that the mounds and the village site had been the result of separate occupations of the same location.The western portion of Hamilton County contains many archaeological sites, due primarily to its favorable terrain. The area is well watered by the Ohio and Miami Rivers; consequently, prior to white settlement of the region, there were large amounts of game, and edible plants could be found in large numbers. For this reason, the Wesley Butler site has been inhabited for at least six thousand years. In recognition of the district's archaeological value, it was listed on the National Register of Historic Places in 1976.

Greendale is a city in Dearborn County, Indiana, United States. The population was 4,520 at the 2010 census.

The Whitewater River is a 101-mile-long (163 km) southerly flowing right tributary of the Great Miami River in southeastern Indiana and southwestern Ohio in the United States. It is formed by the confluence of two forks, the West Fork and East Fork. The name is a misnomer, as there is no true white water on the river. However, there are many rapids due to the steep gradient present - the river falls an average of six feet per mile (1.1 m/km). The gradient rendered upstream navigation impossible, and in the mid-nineteenth century resulted in the construction of the Whitewater Canal paralleling the river from north of Connersville, Indiana, to the Ohio River. The West Fork, shown as the main stem of the river on federal maps, rises in Randolph County, Indiana, approximately 1 mile (1.6 km) northeast of Modoc. It flows 69.5 miles (111.8 km) south and southeast, past Hagerstown and Connersville, and joins the East Fork of the river at Brookville, Indiana. The 56.7-mile-long (91.2 km) East Fork rises in Darke County, Ohio, approximately 10 miles (16 km) northwest of New Paris. It flows south, through Richmond, Indiana, and joins the West Fork of the river at Brookville, Indiana. From the junction the Whitewater flows southeasterly into Ohio where it eventually joins the Great Miami River, a tributary of the Ohio River. Following continual flooding problems on the East Fork, and to help control flooding in the Ohio River, the East Fork was dammed by the US Army Corps of Engineers to create Brookville Lake in 1974. Brookville Lake extends 17 miles (27 km) from just south of Liberty, Indiana, to Brookville. Cities and towns on the Whitewater River (north to south) include Hagerstown, Cambridge City, Connersville, Laurel, Metamora, Brookville, Harrison (Ohio), and Lawrenceburg. Richmond, Indiana is on the East Fork of the Whitewater River and is the most significant town in the river valley, containing most of the population of the valley. The West Fork of the river is paralleled by State Road 121 from Connersville to 5 miles (8 km) west of Brookville, thence by U.S. Route 52 to the Ohio River.

The Rennert Mound Archeological District is a group of archaeological sites in the southwestern part of the U.S. state of Ohio. Located west of Elizabethtown in Hamilton County, the site is composed of one Native American mound and the remnants of two others, spread out over an area of 40 acres (16 ha).The central part of the district is the Rennert Mound (also known as the "Minnie Rennert Mound"), which retains its original shape despite digging by locals in the past. Because the mound has never been excavated professionally, no significant artifacts have been recovered from it; consequently, the culture of the builders is unknown. The surrounding field has yielded plentiful lithic cores of white and tan chert, but too few cores have been found to justify classification of the fields as a village site.: 120  Due to its location and shape, the mound is believed to have been built by Adenan or Hopewellian peoples, both of which typically buried many bodies and large numbers of grave goods within mounds of this size. Another mound was once located approximately 90 feet (27 m) to the west, but it has been destroyed. The preservation of the one mound despite the destruction of the other is likely due to recent intervention: in the early twentieth century, landowner John Rennert planted trees all around this mound to preserve it, but he made no such efforts around the other mounds.: 120 Three mounds once composed the Rennert complex, but neither of the others can be distinguished from the surrounding landscape; however, it is believed that an archaeological investigation might be able to discover their locations. Consequently, like the Rennert Mound, the bases of these two mounds are potential archaeological sites. Yet other sites have been found in the vicinity: a somewhat smaller mound tops a hill to the north,: 120  and the Wesley Butler Archeological District, composed of multiple mounds and a village site, lies just to the southwest.: 121  In 1975, the Rennert Mound and the sites of the two destroyed mounds were listed on the National Register of Historic Places for their archaeological significance.

The Shawnee Lookout Archeological District is a historic district in the southwestern corner of the U.S. state of Ohio. Located southwest of Cleves in Hamilton County's Miami Township, the district is composed of forty-six archaeological sites spread out over an area of 2,000 acres (810 ha). Thirty-four of these sites are located in the 1,000-acre (400 ha) Shawnee Lookout Park, which has been called one of the most beautiful parks in southwestern Ohio.The combination of river bottoms and wooded hillsides in Shawnee Lookout made it a highly attractive site for prehistoric settlement. As a result, the lands included in the district have a long record of aboriginal residency: artifacts found in the district's sites span a range of ten thousand years. These artifacts represent many cultures, including various Archaic peoples, the Hopewell tradition, and other Woodland period peoples. Among the artifacts found at one of the sites are a wide range of biological remains, such as bird bones, fish bones, walnuts, turtle shells, and deer bones. In recognition of the archaeological value of the sites composing the district, Shawnee Lookout was listed on the National Register of Historic Places in 1974.

The Great Miami River (also called the Miami River) (Shawnee: Msimiyamithiipi) is a tributary of the Ohio River, approximately 160 miles (260 km) long, in southwestern Ohio and Indiana in the United States. The Great Miami originates at the man-made Indian Lake and flows south through the cities of Sidney, Piqua, Troy, Dayton, Middletown and Hamilton. The river is named for the Miami, an Algonquian-speaking Native American people who lived in the region during the early days of European settlement. They were forced to relocate to the west to escape pressure from European-American settlers. The region surrounding the Great Miami River is known as the Miami Valley. This term is used in the upper portions of the valley as a moniker for the economic-cultural region centered primarily on the Greater Dayton area. As the lower portions of the Miami Valley fall under the influence of Cincinnati and the Ohio River Valley, residents of the lower area do not identify with the Miami in the same way.

Hidden Valley is a private residential community in Dearborn County, Indiana, United States. For statistical purposes it is a census-designated place (CDP), with a population of 5,387 at the 2010 census, up from 4,417 at the 2000 census.

The Miami Fort Generating Station is a dual-fuel power generating facility. It is a major coal-fired electrical power station, supplemented with a small oil-fired facility. Miami Fort is located in Miami Township, Hamilton County, immediately east of the tripoint of Indiana, Kentucky, and Ohio. Miami Fort Station is named for the nearby Miami Fort (not to be confused with Fort Miami in the same state).