Amador, an E. county of California, bordering on the Sierra Nevada, bounded S. E. by the Amador river, a tributary of the Sacramento, and drained by the branches of the San Joaquin; pop. in 1870, 9,582, of whom 1,627 were Chinese. Gold, copper, marble, and quartz abound. The productions in 1870 were 16,678 bushels of wheat, 51,815 of barley, 36,760 of corn, 73,010 lbs. of wool, and 54,165 gallons of wine. There were 36 quartz mills for the production of gold, 9 saw mills, and 2 newspapers. Capital, Jackson.