Gold was found near what major California city?
In January 1848, John Sutter, a Swiss-born explorer and governor, was having a water-powered saw mill built in his territory, about 40 miles northwest of Sacramento. His carpenter, John Marshall, discovered flakes of gold in a nearby stream, and though the two men agreed to keep it a secret, word soon spread among Sutter’s workers, and then local communities, and eventually throughout the country.
Source: Britannica