San Bernardino County history: Kelso

The Kelso Depot is now the Mojave National Preserve Visitor Center; the County of San Bernardino published this account on September 24, 2026.

According to the county, the site began in 1905 as a rail stop called Siding 16 on the line between Los Angeles and Utah; it served as a base for the San Pedro, Los Angeles and Salt Lake Railroad. The county says trains stopped there for water and that helper locomotives were added to assist trains up Cima Hill.

The county reports local mining and long distances to other cities drove the settlement’s growth; three railroad workers drew names from a hat to rename the site, and John H. Kelso won. The post office followed and the depot was rebuilt into a larger structure.

The county says the 1925 depot combined multiple functions: boarding house, restaurant and community center; it also housed a telegraph office, waiting room and a restaurant nicknamed the “Beanery.”

At its peak in the 1940s, the county reports Kelso had nearly 2,000 residents and about a dozen steam locomotives were stationed there. The county account adds that military trains passed several times each hour and that freight trains carried 2,500 tons of iron ore from the Vulcan Mine to the Kaiser Steel plant in Fontana; the county links that traffic to support for wartime shipbuilding during World War II.

The county records a long decline: by the 1970s Kelso had about 75 residents and was known as a town without television because broadcast signals could not reach it. The depot officially closed in 1962, though housing and dining for crew members remained in use until 1985.

The county says desert conditions caused the main building to deteriorate; preservationists renovated it and it now serves as the Mojave National Preserve Visitor Center. Visitors can view historical exhibits in former dormitory rooms, the baggage room and the ticket office; the depot sits near the Kelso Dunes and cinder cones accessible from Kelbaker Road.

Analysis: The county’s account ties Kelso’s boom to rail and mining activity and its later preservation to historic‑site efforts; that implies the depot’s conversion serves both heritage interpretation and visitor services for the Mojave National Preserve. This is an inference based on the county’s description, not an independent verification of preservation objectives or funding sources. The county post does not specify which preservation groups led the renovation or the financial arrangements behind the work.

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