1983 Map of Corders Reservoir

About this map

Blacks Mountain Experimental Forest and the surrounding Lassen National Forest dominate this landscape in northeastern California as it appeared in the early 1980s. The map documents a rugged terrain shaped by forestry research and seasonal water management, featuring numerous catchments like Corders Reservoir and Railroad Reservoir. Evidence of historic human presence is found at the Eldridge Homestead (Site) and along the Lassen Trail, a primary emigrant route. The mapping of the Old Railroad Grade and numerous Borrow Pits highlights the area's industrial footprint and timber-hauling history. High points such as Blacks Mountain are complemented by detailed markers for mountain infrastructure, including a Lookout Tower and Blacks Cabin Flat, while a network of named springs like Gibbs Spring and Blacks Ridge Spring indicate the critical importance of water sources in this high-elevation forest and game refuge environment.