Few Wyoming residents outside the southwest corner of the state give much thought to trona, yet the mineral quietly anchors one of Wyoming's most stable and globally significant industries. Beneath the desert near Green River lies the largest known deposit of trona on Earth.

Trona is the raw material for soda ash, a chemical compound essential to manufacturing glass, detergents, baking soda, and a host of other products. Wyoming supplies a large share of the world's soda ash, mined from deep underground and processed at plants that have operated for decades, sending the product to markets around the globe.

Unlike coal or oil, the trona industry has enjoyed remarkable stability. Demand for soda ash tracks steady global needs rather than volatile energy markets, and Wyoming's natural deposit gives it a significant cost advantage over producers elsewhere who must make soda ash synthetically. That has meant reliable, well-paying jobs for the communities of Sweetwater County.

The industry rarely makes headlines, lacking the drama of an oil boom or the political charge of coal. But for the corner of Wyoming that depends on it, trona is a quiet blessing, a world-class resource that has provided steady work and prosperity without the wild swings that define so much of the state's mineral economy.