National Historic Landmark · Ohio

Hopeton Earthworks

Added to the National Register in 1966, and a National Historic Landmark.

The record

Property typeSite
AddressOH
CountyRoss County
ListedOct 15, 1966
Listed forPrehistoric archaeology
Level of significanceNational
Reference number66000623
DesignationsNational Historic Landmark, part of UNESCO World Heritage Site

Visiting

Listing on the Register does not open the door. Unless a museum or park runs it, treat this as private property and see it from the sidewalk.
Limited data for this unit

The National Park Service withholds the location of this landmark to protect it, so this page shows no address, map or nearby places.

Explore

Local history books for Ross County

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Guidebooks to historic places and travel in Ohio

  • A guide to historic Marietta, Ohio
    Lynne Sturtevant, 2011
    Find at Bookshop.org
  • Ohio off the Beaten Path®
    Jackie Sheckler Finch, 2024
    Find at Bookshop.org
  • Cincinnati Haunted Handbook
    Jeff Morris and Michael Morris, 2025
    Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

When was Hopeton Earthworks listed on the National Register?

Oct 15, 1966. It is also a National Historic Landmark, the higher of the two designations.

Source: National Park Service

Where is Hopeton Earthworks?

Ross County, Ohio.

Source: National Park Service

Sources

Name, location, type and dates come from the National Register office's spreadsheet of listed properties, because the Park Service's spatial data does not carry this listing. The spreadsheet marks its address as restricted, so no coordinates are shown from any source. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 66000623. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.