Photograph of Cahokia — Photograph by Thank You (24 Millions ) views, CC BY 2.0. Via Wikimedia Commons.

Cahokia Mounds

A National Historic Landmark. Built in 1050. Listed on the National Register of Historic Places in 1966.

From the record

“The Cahokia Mounds is the site of a Native American city which existed c. 1050 - c. 1350 AD, directly across the Mississippi River from present-day St. The state archaeology park lies in south-western Illinois between East St.”
Wikipedia article Cahokia, CC BY-SA 4.0.

One of 27 National Register listings published here for St. Clair County · listed in 1966 · category: Site · built in 1050 · a National Historic Landmark.

Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

The listing

Address. 7850 Collinsville Rd., Cahokia Mounds State Park, Collinsville, 62234
When was it listed? October 1966
Category. site
Township. Canteen township
When was it built? 1050
National Register reference number. 66000899 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Fires near this property

40 since 2008

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 40 fires within 5 miles of Cahokia Mounds between 2008 and 2014, burning about 22 acres in total. None started naturally. 2 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause	Fires
Missing data/not specified/undetermined	19
Debris and open burning	13
Smoking	5
Arson/incendiarism	2
Power generation/transmission/distribution	1

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Date	Cause	Size	Reported by	Name on the report
22 September 2008	Missing data/not specified/undetermined	1.0 acres	Illinois Division of Forestry Resources	SPICER
19 September 2009	Missing data/not specified/undetermined	under an acre	Illinois Division of Forestry Resources	89TH
10 September 2008	Debris and open burning	under an acre	Illinois Division of Forestry Resources	10 BARCLAY
29 July 2008	Missing data/not specified/undetermined	1.0 acres	Illinois Division of Forestry Resources	WETZEL
26 July 2010	Debris and open burning	under an acre	Illinois Division of Forestry Resources	LEVEL
28 June 2008	Smoking	under an acre	Illinois Division of Forestry Resources	MCDONALDS
14 June 2009	Smoking	under an acre	Illinois Division of Forestry Resources	I64 M10
13 June 2008	Missing data/not specified/undetermined	under an acre	Illinois Division of Forestry Resources	81ST

Every fire recorded in St. Clair County

Mines and quarries near this property

9 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 9 workings within 5 miles of Cahokia Mounds: 3 past producers, 2 plants, 2 occurrences, 2 prospects. 2 still produce. What was taken out: Sand and Gravel, Construction, Fire Clay (Refractory), Copper, Silica, Aluminum, Iron, Titanium. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status
(Facility) Cerro Copper Sauget Smelter	Copper	Plant
Collinsville Pit	Stone	Past Producer
Madison County Fireclay	Aluminum, Iron, Silica, Titanium	Prospect
Southwestern Illinois Area Underc	Silica, Aluminum, Iron, Titanium	Prospect
Madison County Fireclay	Fire Clay (Refractory)	Occurrence
Southwestern Illinois Area Underclay	Fire Clay (Refractory)	Occurrence
Barker Dredge	Sand and Gravel, Construction	Past Producer
City Plant & Mill	Sand and Gravel, Construction	Plant
Dredge & Mill #2	Sand and Gravel, Construction	Past Producer

Every working recorded in St. Clair County

Map coverage status

No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.

Listed places nearby

6 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Property	Distance	Listed
Pennsylvania Avenue Historic District	4.6 miles	1979
United States Post Office and Courthouse	5.3 miles	2014
Majestic Theatre	5.3 miles	1985
Spivey Building	5.4 miles	2002
Union Trust Bank Company Building	5.4 miles	2014
Downtown East St. Louis Historic District	5.4 miles	2014

Sources for this property

National Archives record	The nomination case file for reference 66000899 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
St. Clair County	All 27 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.