A legacy of the Gold Rush is mercury-contaminated sediments in the Bay. Miners used mercury to extract gold from tailings during the gold rush. A large amount of this mercury (some estimates are as great as 10,000 tons) was lost during extraction to the watershed during the gold rush era. This mercury-contaminated hydraulic mining debris made its way to the Bay.
|Title||Mercury-contaminated sediments in the North Bay: A legacy of the Gold Rush|
|Authors||Bruce E. Jaffe|
|Publication Subtype||Journal Article|
|Series Title||Northern California Geological Survey Newsletter|
|Record Source||USGS Publications Warehouse|
|USGS Organization||San Francisco Bay-Delta; Pacific Regional Director's Office|