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Weldon Spring, Missouri: Nuclear Waste Adventure Trail Team Field Report

Weldon Spring Site

7295 Hwy 94 S., Weldon Spring, MO
Weldon Spring Site. Westbound I-64 exit 10 or eastbound exit 9. South on Hwy 94 two miles. On the right.
Visitor Center M-F 9-5 Sa 10-2 Su 12-4. Gated after hours. (Call to verify) Local health policies may affect hours and access.
RA Rates:
Worth a Detour
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Nuclear Waste Adventure Trail.

Nuclear Waste Adventure Trail

The view is breathtaking from the top of the seven-story-tall nuclear waste pile. Report... [05/26/2013]

Visitor Tips and News About Nuclear Waste Adventure Trail

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Nuclear Waste Adventure Trail

In January 2022 the steps up to the observation deck were closed for repairs.

[Kirk DiFalco, 01/21/2022]

The management of the Weldon Spring Site is aware of the popularity of the stairs and hopes to have their repairs completed by Spring 2022. Stair-climbers should call before they visit.

Nuclear Waste Adventure Trail.

Nuclear Waste Adventure Trail

Very nice area! Signs say it closes at dusk, but maybe people linger to watch the sunset.

[Patrice, 10/07/2018]

Nuclear Waste Adventure Trail.

Nuclear Waste Adventure Trail

What an education this visit was. The lady in the visitor center had an amazing amount of knowledge and was eager to share it. I had no idea this place even existed until I saw it on Roadside America! I was very impressed with how this toxic site was interpreted, and the visual display along with the short video told an amazing story. The walk up to the top was rather uneventful, except to witness the immensity of this cleanup project. Lot's of hawks and buzzards around as well as some nice prairie flowers.

[Casaflamingo, 08/30/2017]

Nuclear Waste Site.

Nuclear Waste Adventure Trail and Museum

I stumbled upon this attraction in near Weldon Spring, MO while searching for Daniel Boone's home, which is nearby. This mound is part of the clean-up of nuclear and other weapons production, which took place early to later in the last century. Apparently several towns were displaced to create the operations. A very informative museum, which appears to be run by the federal government, is located there. It seems to be free -- at least we didn't pay and no one complained! As you can see from the photos, it's possible to take a walk to the summit of the mound if you really don't mind being on top of a giant nuclear waste pile. It may be the highest point in St. Charles County.

[Dennis Dhaese, 02/19/2005]

The government opened the Weldon Spring Site to the public in 2002, when uranium processing waste radiation levels were judged low enough to permit tourism. The waste tomb spans 45 acres and is seven stories tall. The Adventure Trail is six miles long, with explanatory plaques along the way. The interpretive center used to be the radioactive worker detection checkpoint.

Nearby Offbeat Places

The Awakening - Buried GiantThe Awakening - Buried Giant, Chesterfield, MO - 9 mi.
Big Butterfly and CaterpillarBig Butterfly and Caterpillar, Chesterfield, MO - 10 mi.
Horseshoe Pitchers Hall of Fame and MuseumHorseshoe Pitchers Hall of Fame and Museum, Wentzville, MO - 10 mi.
In the region:
Fish on a Bicycle, University City, MO - 22 mi.

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