{"nrhp_refnum":"66000119","name":"Mound City Group National Monument","other_names":["Hs-%m1-34","Hs-%37-38"],"category":"district","location":{"address":"N of Chillicothe","address_restricted":false,"city":"Chillicothe","county":"Ross County","state":"OH","lat":39.376428532000034,"lon":-83.00436497342105,"geom_source":"nps_gis"},"listed_date":"1966-10-15","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric","Transportation","Religion"],"significance_levels":["national"],"summary":{"what_it_is":"A district of Hopewellian burial mounds inside a rectangular earthen enclosure of about 13 acres, on high ground overlooking the Scioto River near Chillicothe, Ross County, Ohio. It was established as a national monument by Presidential Proclamation in 1923.","why_significant":"The form describes it as an important assemblage of earthen structures tied to the prehistoric Adena and Hopewell cultures. It was closely linked to the origins of American archeology through the 1840s studies of Squier and Davis. It has added greatly to knowledge of the Hopewell tradition and is called perhaps the best assemblage of Hopewellian funerary features open to the public.","narrative":"Mound City Group is a cluster of Hopewellian burial mounds on high ground above the Scioto River near Chillicothe, Ohio. A low earthen wall encloses about 13 acres holding 23 mounds, with two more just outside. Most were built over the burned sites of charnel houses, where the dead were prepared, and then capped with gravel. Looting and farming damaged the site, and in 1917 levelling for Camp Sherman severely disrupted most of the mounds. Reconstruction began in the 1920s and continued from the late 1950s and 1960s. It was proclaimed a national monument in 1923. The form values it for its link to the 1840s work of Squier and Davis, which helped found American archeology, and for what it has taught about the Hopewell, who made art and offerings from copper, obsidian, shell and mica. It is also considered one of the best places for the public to see Hopewellian funerary features.","period_of_significance":null,"architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Mounds are largely reconstructions, mostly from the 1920s, and the condition is listed as excellent. Archeological research and restoration work were still underway. An amendment says the dock, steps and wall are extremely deteriorated and a safety hazard.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:09.067278-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/66000119.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/66000119/4961795bab-800.webp","url_1600":"https://nationalhistoricalregister.com/media/66000119/4961795bab-1600.webp","licence":"CC BY-SA 4.0","author":"Ɱ","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Hopewell_Culture_National_Historical_Park.jpg\" rel=\"noopener\">Ɱ</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Hopewell_Culture_National_Historical_Park.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71991177","wikipedia":"https://en.wikipedia.org/wiki/Hopewell_Culture_National_Historical_Park","wikidata":"https://www.wikidata.org/wiki/Q4315010"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/ross-county/mound-city-group-national-monument-66000119/"}