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Cahokia Mounds State Historic Site

30 Ramey Dr, Collinsville, Illinois 62234 USA

Closed Now
Opens Wed 9a
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  • Outdoor
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Historic Treasure

Our Take

Cahokia Mounds is a short drive from downtown St. Louis and it's rich with culture. This area is an archaeological gem and a UNESCO World Heritage Site, as it’s the location of a pre-Columbian Native American city. It's super cool to learn about the culture and people that occupied the area hundreds of years prior to our existence. There are multiple walking paths here. Monks Mound is the largest mound with a staircase that escalates 100 ft to the top. It's a great opportunity to learn about the most sophisticated prehistoric native civilization north of Mexico while squeezing in some steps. Admission is free and dogs are welcome on the grounds outside of the visitor center.

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“a 13th century civilization larger than London!”

One of the greatest cities of the world, Cahokia was larger than London was in AD 1250. The remains of the most sophisticated prehistoric native civilization north of Mexico are preserved at Cahokia Mounds State Historic Site. Within the 2,200-acre tract, located a few miles west of Collinsville, Illinois, lie the archaeological remnants of the central section of the ancient settlement that is today known as Cahokia. According to archaeological finds, the city of Cahokia was inhabited from about A.D. 700 to 1400. At its peak, from A.D. 1050 to 1200, the city covered nearly six square miles and 10,000 to 20,000 people lived here. Over 120 mounds were built over time, and most of the mounds were enlarged several times. Houses were arranged in rows and around open plazas, and vast agricultural fields lay outside the city.The site is named for the Cahokia subtribe of the Illiniwek (or Illinois tribe, a loose confederacy of related peoples), who moved into the area in the 1600s. They were living nearby when the French arrived about 1699. Sometime in the mid-1800s, local historians suggested the site be called "Cahokia" to honor these later arrivals. Archaeological investigations and scientific tests, mostly since the 1920s and especially since the 1960s, have provided what is known of the once-thriving community. The fate of the prehistoric Cahokians and their city is unknown, but the decline seems to have been gradual, beginning around the 1200s. By A.D. 1400 the site had been abandoned. Exactly where the people went or what tribes they became is yet to be determined.Depletion of resources probably contributed to the city's decline. Climate change after A.D. 1200 may have affected crop production and the plant and animal resources needed to sustain a large population. War, disease, social unrest, and declining political and economic power may have also taken their toll.

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Reviewed by

  • 7 Reviews
  • 6 Helpful
December 16, 2015
Rated 5.0

A must see. Educational museum with a movie, my 7 yet old loved it. Self guided audio tours around the main grounds, the central mound is a nice walk. You could spend a whole day here. Not many know this was he largest city in the US before Europeans arrived.

6 people found this review helpful

Reviewed by

  • 1 Review
  • 5 Helpful
June 26, 2018

Museum building is CLOSED on Mondays and Tuesdays.

5 people found this review helpful

Reviewed by
Tatiana Danger

  • Road Warrior
  • 1,169 Reviews
  • 871 Helpful
September 07, 2014
Rated 3.0

Wear appropriate footwear, cause you're going to be doing a lot of walking. This is a very well-maintained historic site, with plenty to explore. There's also an on-site museum, with very friendly staff.

4 people found this review helpful

Reviewed by

  • 1 Review
  • 3 Helpful
March 11, 2016
Rated 4.0

Nice unknown piece of American history. Interesting tales. Long walks.

3 people found this review helpful

Reviewed by

  • 9 Reviews
  • 6 Helpful
August 30, 2015
Rated 5.0

The museum is extremely well designed and was a pleasure to visit. Lots to see and there is a great view from the top of Monk's Mound if it is a clear day.

3 people found this review helpful

Reviewed by
Kerry Family

  • 24 Reviews
  • 3 Helpful
February 27, 2018
Rated 4.0

The mounds are great to see and the museum inside is worth going through. My children (6 and 2) had fun. The only warning is that if you decide to climb the mounds, it's quite a lot of stairs so be prepared.

2 people found this review helpful

Reviewed by

  • 6 Reviews
  • 3 Helpful
October 11, 2018
Rated 5.0

Very cool Place! Can see St Louis Arch from the top

1 person found this review helpful

Reviewed by

  • 72 Reviews
  • 12 Helpful
March 01, 2015
Rated 4.0

Very accessible, beautiful and has an interesting history.

1 person found this review helpful

Reviewed by

  • 5 Reviews
  • 0 Helpful
August 29, 2021

This was a pretty awesome experience! I had no idea we had anything like this in North America?
Lots of artifacts and history! I walked the 10 mile path and climbed the steps on the largest mound. Make sure you take water if it’s a hot day! I did not and regretted it.
Plan on spending a couple of hours.

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Reviewed by

  • 1 Review
  • 0 Helpful
June 02, 2019
Rated 5.0

This is a must stop, even with young children. We tired them out climbing the mound and walking the site.
This is such a massive complex, and it is hard to believe something so large was built, until you see it.
The museum and staff are wonderful and friendly.

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Cahokia Mounds State Historic Site

30 Ramey Dr
Collinsville, Illinois
62234 USA


Closed Now
  • Sun - Sat: 9:00 am - 5:00 pm

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Good for hiking and Cultural travelers. Has a Historic vibe.

  • Parking
  • Pets Allowed
  • Restrooms
  • Wifi
  • Wheelchair Accessible
  • Credit Cards Accepted
  • Outdoor Seating
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Parking, Dining

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