1948 Map of Nevada City

About this map

The Middle Yuba River and South Yuba River carve through this landscape, defining a region where the legacies of hydraulic mining and early power generation are plainly visible. In the late 1940s, the map shows the impact of the gold era through features like the Cherokee Diggings, Grizzly Diggings, and the massive Idaho Maryland Mine near Nevada City Rancheria. The Bullards Bar Reservoir and Colgate Powerhouse signal the mid-century transition toward water management and electrification that reshaped these valleys.