The Comstock Lode was

Answer 1

a major silver and gold deposit located in the Virginia Range in Nevada, discovered in 1859. It was one of the largest and richest silver mines in the United States and played a significant role in the development of the American West. The discovery of the Comstock Lode led to a mining boom in the region and the establishment of the town of Virginia City, which quickly grew to be one of the largest cities in Nevada at the time. The Comstock Lode produced over $300 million worth of silver and gold during its operation and had a lasting impact on the economy and history of the American West.