1955 Map of Cisco Grove

About this map

High Sierra ridgelines and critical transit corridors define this landscape in the Tahoe National Forest. The Southern Pacific railroad and Interstate 80 traverse the rugged gap between Signal Peak and Red Mountain, following the path carved by the South Yuba River. This 1955 survey, updated with 1973 revisions, reveals the infrastructure supporting mid-century mountain commerce and recreation, from the Microwave Relay Sta and Airway Beacon atop Cisco Butte to the organized campgrounds at Marin-Sierra Boy Scout Camp and 4H Club Camp.