1955 Map of Almanor

About this map

Lake Almanor and the Butt Valley Reservoir dominate this mid-century landscape in the high Sierra Nevada, where water management and hydroelectric infrastructure define the terrain. The map details the controlled inundation areas surrounding the lake, marking critical infrastructure like the Intake Tower and Spillway 4143. The Western Pacific railroad winds along the North Fork Feather River at the southern edge, connecting riverside settlements such as Belden, Virgilia, and Twain.