During the silver bonanza of the first decade of the 20th century, the need in the precious-metal fields for freight service led to construction of a network of local railroad lines across the Nevada desert to Tonopah. Examples include the Las Vegas and Tonopah Railroad, the Tonopah and Goldfield Railroad, and the Tonopah and Tidewater Railroad. Coal was hauled to the silver mines to power mine operations and also the stamp mills built in and around Tonopah to break apart the hard-rock ore for milling and refining.