Roy, John, Site

Clayton, Adams County, Illinois Listed Ref. 78001109 Site
Roy, John, Site, Clayton, Illinois
Photo: Nyttend, Public domain, via Wikimedia Commons
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Why it's listed

No readable nomination text is available for this listing yet. The facts below come from the National Park Service database and the National Archives record.

Key facts

AddressAddress restricted by the NPS (common for archaeological sites and some private homes)
CountyAdams County
ListedMay 22, 1978
Reference number78001109
Resource typeSite
Areas of significancePrehistoric
Level of significanceNational
Acreage3
Coordinates40.02917, -90.95806 (Wikidata)

What listing means for this property

Sites (archaeological sites, battlefields, landscapes) are often listed with a restricted address to protect them from looting or disturbance. Listing is honorary for private owners; federal undertakings on or near the site go through Section 106 review, and state laws may protect burials and artefacts regardless of listing.

General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.

Sources and further reading

Last updated October 2026. Found an error? See the editorial policy for how to report it.