PART ONE: The history of some Southern California tunnels and why they were built ... but they have been closed by the U.S. Forest Service. The remains of the main mining structure still clings ...

The site of the largest camp for Chinese railroad workers in California in the 19th century ... which was focused on blasting and building tunnels through the Sierra Nevada mountains as part ...

SACRAMENTO— Environmental groups sued the California Department of Water Resources today for approving the Delta Conveyance Project without considering ecological and wildlife harms. The tunnel ...

PART ONE: The history of some Southern California tunnels and why they were built According to local ... Many of the mine’s tunnels are intact, but they have been closed by the U.S. Forest Service.