This report details California's mineral production and lists its mineral producers for the year 1934. Authored by Henry H. Symons, a mining engineer, this document serves as a comprehensive record of the state's geological resources and the entities involved in their extraction during that period. It compiles data on various minerals, their quantities, and the companies or individuals responsible for their production, offering a snapshot of the industry's status at the time.

This publication is a historical record of California's mineral industry, valuable for its factual data on production and producers from 1934. Its utility lies in its direct reporting of the era's mining landscape, serving as a primary source for researchers and historians. The reproduction notes potential imperfections inherent in older artifacts, but affirms its cultural importance and commitment to preservation.