sentences:  The Civil War brought most operations to a halt, but a few operations continued after the war, and several mines were reworked in the 1930s, during the Great Depression.It is estimated that Georgia produced about 870,000 troy ounces (24,000 kg) of gold between 1828 and the mid-20th century, when commercial gold production ceased.Before they were expelled, the Cherokee gained enough gold-mining experience to participate in later gold rushes in California in 1849 and Colorado in 1859.