In the high desert of San Bernardino County, the rhythmic sound of the Trona Railway’s vintage SD40 locomotives has long served as the heartbeat of Searles Valley. However, that rhythm is slowing. As of early 2026, a “perfect storm” of economic and regulatory pressures has forced Searles Valley Minerals (SVM) to implement massive cutbacks, leading to a significantly reduced schedule for the historic short-line railroad.

The Catalyst: Plant Idling and Layoffs

The downturn began in earnest in February 2026, when Searles Valley Minerals announced the idling of its Argus and Trona plants. Citing a combination of global market saturation—specifically the “dumping” of low-cost soda ash from overseas—and California’s stringent regulatory environment, the company issued WARN Act notices to over 300 employees, roughly 55% of its workforce.

While the Westend facility remains operational, the mothballing of the Argus plant has removed the primary demand for the coal and soda ash shipments that once filled the Trona Railway’s manifests.

Impact on Trona Railway Operations

The Trona Railway (TRC), which operates a 30.6-mile line between the mining complex and the Union Pacific interchange at Searles Junction, has been forced to adapt to the following changes:

• Reduced Frequency: Once a daily operation, the TRC has shifted to an “ad-hoc” or “as-needed” schedule. Local reports and rail enthusiasts have noted that coal trains, formerly a staple of the line, have virtually disappeared as the plant transitions away from coal-fired power.

• Shifting Commodities: With the Argus plant idled, the railway is pivoting to focus on boron and minerals from the Westend plant. Boron’s recent classification as a U.S. Critical Mineral provides a slim silver lining, potentially stabilizing a baseline of rail traffic for national security interests.

• Infrastructure & Equipment: Plans for new Tier 4 locomotives have reportedly been paused or cancelled due to the loss of funding and the sudden drop in operational demand. The iconic “tunnel motor” locomotives continue to run, but far less frequently.

A Community in Transition

The reduction in rail and mining activity is more than a corporate shift; it is an existential threat to the town of Trona.

“In Trona, the company is the town,” noted one local resident. “They support the schools and provide the water. When the trains stop running, the lights start to

Local schools are already bracing for an enrollment “death spiral” as families relocate to find work. The railway’s reduced schedule is the most visible indicator of this contraction, signaling a transition from a booming mineral hub to a leaner, more specialized operation.

Looking Ahead: Solar and Survival

Despite the grim outlook, SVM is looking toward a different kind of future. In late 2025, the company partnered with GlassPoint to begin replacing its coal-fired operations with a massive 750 MWth solar thermal project.If successful, this could eventually lower energy costs enough to make California mineral production competitive again.

For now, however, the Trona Railway remains in a state of watchful waiting, its reduced schedule a somber reflection of a valley fighting to remain “Trona Strong.”