View of a salt mine, California, ca.1910 

Large stack of salt being piled at a salt mine, California, ca.1910 

Man standing next to the brick building of the salt works north of Redondo Beach, ca.1901(?) 

Salt stacks drying, California, ca.1910 

Salt stacks drying, California, ca.1910 

Portrait of passengers, conductors and engineers posing near Pico Boulevard Electric Railroad cars, Los Angeles, 1887 

Decorated locomotive engine used to transport President Theodore Roosevelt to La Fiesta in Los Angeles, May 8, 1903 

An aerial view of a salt marsh north of Death Valley, California, ca.1910 

Unidentified salt stacks drying with workers and machinery in the background, ca.1910 

Salt stacks drying in shallow water, California, ca.1910 

Blurred view of two men at a salt mine sitting on a cable that appears to be in motion, ca.1910 

The Colis P. Huntington, a Southern Pacific Railroad locomotive, [s.d.] 

"L. L. Robinson" locomotive used by the Sacramento Valley Rfailorad, California, ca.1867 

Southern Pacific Railroad locomotive number twenty, ca.1895 

Southern Pacific Railroad train with a "Cab Forward" locomotive, ca.1910 

Pasadena looking east from Salt Lake Railroad Depot, ca.1887 

Drawing of "West Point," the first locomotive with a four-wheel truck, ca.1840 

Two locomotives for the San Pedro and Los Angeles Railroad, 1872 

Steam engine trailing its coal car on the Los Angeles and San Gabriel Valley Rail Road, 1890 

Conness Number Six engine with fuel box, standing on a trestle, Central Pacific Railroad, March, 1865