Smithsonian trinomial in the context of "Town Creek Indian Mound"

The Hardaway Site, designated by the Smithsonian trinomial 31ST4, is an archaeological site near Badin, North Carolina. A National Historic Landmark, this multi-layered site has seen major periods of occupation as far back as 10,000 years. Materials from this site were and are used to assist in dating materials from other sites in the eastern United States. The site was declared a National Historic Landmark in 1990.

Fort St. Pierre was a colonial French fortified outpost on the Yazoo River in what is now Warren County, Mississippi. Also known as Fort St. Claude and the Yazoo Post, it was established in 1719 and served as the northernmost outpost on the Eastern Banks of The Mississippi River in Lower French Louisiana. It was destroyed in 1729 by Native Americans and was not rebuilt. Its location, north of Vicksburg on the east bank of the river, was discovered by archaeologists in the 1970s, and was given the Smithsonian trinomial 23-M-5. It was declared a National Historic Landmark in 2000.

Cahokia Mounds /kəˈhoʊkiə/ (11 MS 2) is the site of a Native American city (which existed c. 1050–1350 CE) directly across the Mississippi River from present-day St. Louis. The state archaeology park lies in south-western Illinois between East St. Louis and Collinsville. The park covers 2,200 acres (890 ha), or about 3.5 square miles (9 km), and contains about 80 manmade mounds, but the ancient city was much larger. At its apex around 1100 CE, the city covered about 6 square miles (16 km), included about 120 earthworks in a wide range of sizes, shapes, and functions, and had a population of between 15,000 and 20,000 people.

Cahokia was the largest and most influential urban settlement of the Mississippian culture, which developed advanced societies across much of what is now the Central and the Southeastern United States, beginning around 1000 CE. Today, the Cahokia Mounds are considered to be the largest and most complex archaeological site north of the great pre-Columbian cities in Mexico.

The Rockhouse Cliffs Rockshelters (12PE98 and 12PE100) are a pair of rockshelters in the far southern region of the U.S. state of Indiana. Located amid broken terrain in the Hoosier National Forest, the shelters may have been inhabited for more than ten thousand years by peoples ranging from the Early Archaic period until the twentieth century. As a result of their extensive occupation and their remote location, they are important and well-preserved archaeological sites and have been named a historic site.

The Kincaid Mounds Historic Site (11MX2-11; 11PO2-10) c. 1050–1400 CE, is a Mississippian culture archaeological site located at the southern tip of present-day U.S. state of Illinois, along the Ohio River. Kincaid Mounds has been notable for both its significant role in native North American prehistory and for the central role the site has played in the development of modern archaeological techniques. The site had at least 11 substructure platform mounds (it ranks fifth among known sites of this period for the number of such structures), and 8 other monuments.

Artifacts from the settlement link its major habitation and the construction of the mounds to the Mississippian culture period. It is 140 miles from Cahokia, the major center of Mississippian culture in North America. The Kincaid site was also occupied earlier by indigenous peoples of the Late Woodland period. The site was declared a National Historic Landmark in 1964 for its significance as a major Native American mound center and prehistoric trading center along the Ohio River.