Download October 2025 Atomic Tourism Calendar

Weldon Spring Site and Interpretive Center. Steps to the top.
Steps to the top of the Weldon Spring Site.

This month’s calendar features the Weldon Spring Site and Interpretive Center. Specifically, the featured image is the entrance to take the steps to the top of the site for an interesting panoramic view of the area.

The U.S. government acquired 17,232 acres of rural land, displacing 576 residents and three towns to establish the Weldon Spring Ordnance Works supporting World War II efforts for manufacturing TNT and DNT.

TNT in St. Charles County
TNT Marker noting the displacement of residents.

From 1956 – 1967, the U.S. Atomic Energy Commission constructed the Weldon Spring Uranium Feed Materials Plant to convert uranium ore concentrates to pure uranium oxides and compounds. Obviously, by 1987, with production ceasing, the DOE was left with a massive Superfund cleanup site.

Weldon Spring Site disposal cell structure
Weldon Spring disposal cell structure from afar.

The outstanding feature of the Weldon Spring Site is the 41 acre, 75 foot tall engineered disposal cell structure designed to contain the site’s waste. Now a public park with walking trails, bird watching, mountain biking, and native, restored prairie, the disposal cell stairway takes you to the top of the mound with a panoramic view of the area with historical markers.

Weldon Spring Marker at the top of the disposal cell
Weldon Spring Marker at the top of the disposal cell.

Be sure to go to the Interpretive Center that explains more about the area, the TNT manufacturing, the Atomic Energy Commission’s use for uranium materials, and the Department of Energy cleanup.

Be sure to download the October 2025 calendar featuring significant atomic events and atomic shots occuring during the month of October.

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