Analysis of information sources in references of the Wikipedia article "Sutter's Mill" in English language version.
The Mormons did not like to leave my mill unfinished, but they got the gold fever like everybody else. After they had made their piles they left for the Great Salt Lake. So long as these people have been employed by me they hav [sic] behaved very well, and were industrious and faithful laborers, and when settling their accounts there was not one of them who was not contented and satisfied.
This small piece of yellow metal is believed to be the first piece of gold discovered in 1848 at Sutter's Mill in California, launching the gold rush. James Marshall was superintending the construction of a sawmill for Col. John Sutter on the morning of January 24, 1848, on the South Fork of the American River at Coloma, California, when he saw something glittering in the water of the mill's tailrace. According to Sutter's diary, Marshall stooped down to pick it up and 'found that it was a thin scale of what appeared to be pure gold.' Marshall bit the metal as a test for gold.
