The Film

Glass, toothpaste, paper—everyday products made possible by a mineral most people have never heard of: trona. In fact, 100 percent of U.S. glass relies on trona mined in Wyoming. Yet the vast underground world that fuels this $470 million (and growing) industry remains largely invisible to the public.

This one-hour documentary takes you deep into the heart of the Wyoming trona mines, where workers navigate massive subterranean cities and operate heavy machinery to extract this essential mineral. Along the way, you'll meet the people behind the process—the miners whose labor supports local communities through millions in state taxes and royalties.

Join us underground and discover what it truly means to be a Wyoming trona miner. 

The Filmmakers

Afar and Below: The Story of the Wyoming Trona Miners is a Wyoming PBS production directed by three-time Emmy® winners Mark Pedri and Carrie McCarthy—a dynamic producing and directing team who have created over a decade’s worth of award-winning films. With deep roots in Sweetwater County, the heart of the trona mining industry, and a shared passion for discovery, Mark and Carrie’s work often begins in the American West and expands to far-reaching corners of the globe, including Los Angeles, France, Germany, Italy, and Hong Kong.

Their films are known for their compelling characters and immersive storytelling, driven by their love of the natural world and a deep-seated curiosity about science—areas in which both filmmakers hold expert knowledge.

Snapshots from the Film

WY PBS is proud to share stories of adventure and discovery that bring our state's treasures to light. Through films like Afar and Below, we connect viewers with the places and remarkable experiences that make Wyoming unique. To help us continue bringing these stories to your screen, please consider supporting WY PBS.