Spiro Mounds Archaeological Center

Spiro Mounds Archaeological Center Spiro Mounds is the only prehistoric archaeological site in Oklahoma open to the public.

The mounds at Spiro, Oklahoma, are among the most important archaeological remains in the United States. A remarkable assemblage of artifacts from the mounds shows that prehistoric Spiro people created a sophisticated culture which influenced the entire Southeast. There was an extensive trade network, a highly developed religious center, and a political system which controlled the region. Located

on a bend in the Arkansas River, the site was a natural gateway between societies to the east and the west, a gateway at which Spiro people exerted their influence. Yet much of the Spiro culture is still a mystery, including the reasons for the decline and abandonment of the site.

Our hours for the upcoming Labor Day weekend.
09/03/2026

Our hours for the upcoming Labor Day weekend.

A visitor recently shared Anthropeum with us, and we thought it was too fun to not pass along. This guessing game challe...
08/29/2026

A visitor recently shared Anthropeum with us, and we thought it was too fun to not pass along. This guessing game challenges you to figure out where and when artifacts from around the world were made. The game is updated daily. If you are a fan of the GeoGuessr game and archaeology, you will probably like this.

A daily game that challenges our understanding of human cultures. Ten objects. 5,000 years of human history. Guess where and when each artifact was made. See how you rank.

Work begins on the reconstruction of Craig Mound, 1975. The reconstruction was completed with the help of photos taken...
08/27/2026

Work begins on the reconstruction of Craig Mound, 1975. The reconstruction was completed with the help of photos taken of the mound before it was disturbed. Old trenches from WPA-era excavations were also identified in order to find the original location of the mound.

📷 Oklahoma Archeological Survey

The only thing that could be worse than this relentless heat wave we're experiencing is working in it. Field crews work ...
08/22/2026

The only thing that could be worse than this relentless heat wave we're experiencing is working in it.

Field crews work on House Mound 5, sometime between 1978 and 1982. Brown Mound can be seen off to the right behind the pickup truck.

📷 Oklahoma Archeological Survey

Crews work to address erosion at Cavanaugh Mound in Fort Smith, Arkansas, during 2017 rehabilitation efforts. The Arch...
08/20/2026

Crews work to address erosion at Cavanaugh Mound in Fort Smith, Arkansas, during 2017 rehabilitation efforts. The Archaeological Conservancy acquired the mound in 2005 and has worked to preserve and stabilize it. Cavanaugh Mound, not far from the Spiro site, has been known by other names, including Jones Mound, Etter's Mound, and Site Zeta. Although archaeologists can't precisely date the mound, research indicates that it was constructed and used as a platform mound through multiple stages.

The letter of the day is "T," for thistle and trumpet vine. (And a cameo from two Pipevine Swallowtails.)
08/15/2026

The letter of the day is "T," for thistle and trumpet vine. (And a cameo from two Pipevine Swallowtails.)

All baled up.
08/13/2026

All baled up.

These past few weeks have been making us wish for weather like this. Brown Mound in the snow, viewed from the south.
08/08/2026

These past few weeks have been making us wish for weather like this. Brown Mound in the snow, viewed from the south.

The National Weather Service has issued a Heat Advisory for our area today! If you plan to walk the trails please take t...
08/05/2026

The National Weather Service has issued a Heat Advisory for our area today! If you plan to walk the trails please take the appropriate precautions. We have a water refilling station if you want to bring your own bottle.

Looking for something to do this fall or winter? We will have our Archaeology Day event on Saturday, October 17th, and o...
08/01/2026

Looking for something to do this fall or winter? We will have our Archaeology Day event on Saturday, October 17th, and our next Solstice Walks event will be on Saturday, December 19th.

Address

18154 1st Street
Spiro, OK
74959

Opening Hours

Tuesday 9am - 4pm
Wednesday 9am - 4pm
Thursday 9am - 4pm
Friday 9am - 4pm
Saturday 9am - 4pm

Telephone

(918) 962-2062

Website

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