This image shows the combined efforts of Caucasian and Chinese workers. The sifting operation that they are performing in this picture is called a sluicing operation. This picture is noted to be one of the earliest photos of Chinese mine workers. By the mid 1850s, over 20,000 Chinese immigrants made a living in the gold country.
California State Library
State of California
Still Image. Historical photo.
Quarter plate, daguerrotype
J.B Starkweather, “Immigrants in California,” Digital Exhibits, accessed August 13, 2022, http://digitalexhibits.libraries.wsu.edu/items/show/5574.