The West Branch of the Feather River in northern Butte County was once a rich mining region. In 1859, an incredible 54-pound gold nugget washed from the flanks of Sawmill Peak, named for the ridge's other main industry, logging. An intricate web of stage roads, and later railroads, linked the little mining and lumber towns that dotted these peaks covered in giant white and ponderosa pine. Steam engines hauled huge logs to mills like the Diamond Match Company, crossing steep canyons on wooden trestles stretched to heart-stopping heights. Some early mining towns like Magalia (once known as...