This site preserves a prehistoric earthlodge village site surrounded by a large fortification ditch with four clearly defined bastions. Although archaeologists originally thought the village dated 1780–1845, they now believe it may have been occupied as early as A.D. 1100. There is a marker on the site.

The site is open to the public.

Website does not specify any interpretive services available at the site.

One of the most important archaeological sites in Illinois, Albany Mounds contains evidence of continuous human occupation over the last 10,000 years. The Mounds date from the Middle Woodland (Hopewell) period (200 BCE–CE 300), older than either the Cahokia or Dickson Mounds of the Mississippian period. The only Middle Woodland site owned by the state, Albany Mounds originally was made up of 96 burial mounds. At least 39 of the mounds remain in good condition, while eight have been partially destroyed through erosion, excavation, or cultivation. Burial artifacts include non-local materials, indicating the existence of trading networks with Native Americans from other areas. The mounds were placed on the National Register of Historic Places in 1974. In the 1990s the site was "restored" to a natural appearance and a prairie of about 100 acres established. The site also contains a parking lot and picnic shelter, walking trails, and interpretive signs along a bike trail. The Friends of the Albany Indian Mounds Foundation is dedicated to the preservation and interpretation of the site.

No substantive information on interpretative services offered at the site.

This site is called Inyan Bosendata by Sioux Indians who consider it sacred. The rock, four feet tall and shaped like an inverted cone, stands on a complex of prehistoric burial mounds dating from the Woodland Period (A.D. 0–1400). There is a marker on the site.

The site is open to the public.

Website does not specify any interpretive services available at the site.

Story Mound, of interest primarily to archaeologists, consists of a large, rounded earthen mound located on slightly less than an acre of ground. This prehistoric burial mound stands 19.5 feet high, with a basal diameter of 95 feet. Erected by prehistoric Adena Indians (800 BC—AD 100), it was excavated in 1897 by Clarence Loveberry. It yielded the first documented example of a circular Adena timber building, a structural type now known as the norm in Adena ceremonial and domestic architecture.

The site is not open to the public.

The Miamisburg Mound is the largest conical burial mound in the state of Ohio and possibly in the eastern U. S. Archaeological investigations of the surrounding area suggest that it was constructed by the prehistoric Adena Indians (800 BC–AD 100). Built on a 100-foot-high bluff, the mound measures 877 feet in circumference. It was originally more than 70 feet high. Visitors may climb the 116 steps from its base to the summit for a view of the surrounding park.

The site is open to the public.

Website does not specify any interpretive services available at the site.

Two granite boulders inscribed with thunderbird figures of Native American origin are exhibited at Writing Rock State Historic Site.

The site is open to the public.

Website does not specify any interpretive services available at the site.

Seip Mound is the central mound in a group of geometric earthworks. Farming and erosion have degraded the surrounding earthworks leaving the central mound an outstanding feature. It is 240 feet long, 130 feet wide, and 30 feet high. Excavations have revealed that prehistoric Indian buildings existed near the earthworks. Today, visitors can see the location of some of these buildings as they are outlined by short posts in the ground. The Hopewell Indians (100 BC–AD 500) built Seip Mound for burials. This culture had a highly developed craft industry, as is evidenced by artifacts found with bodies in the burial site.

The site is open to the public.

Website does not specify any interpretive sources available at the site.

Shrum Mound is one of the last remaining conical burial mounds in the city of Columbus. The 20-foot-high and 100-foot-diameter mound is located in the one-acre Campbell roadside park. The mound is grass-covered and steps lead to its summit. It was probably constructed about 2,000 years ago by the prehistoric Adena people.

The is open to the public.

Website does not include any specifics about interpretive services available at the site.

Inscription Rock, on the south shore of Kelleys Island, is marked with prehistoric Indian pictographs. The flat-topped limestone slab displays carvings of animals and human figures. Discovered partly buried in the shoreline in 1833, the 32-foot-by-21-foot rock is now entirely exposed. Much eroded by the elements, it is now protected by a roof and viewing platform. Archaeologists believe the inscriptions date from sometime between AD 1200 and 1600.

The site is open to the public.

Website does not specify any interpretive services available at the site.