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1949 Map of North Bloomfield

Name: 1949 Topographic Map of North Bloomfield
Creator: U.S. Geological Survey
Published: 1980
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1980

About this map

Malakoff Diggings and the surrounding hydraulic mining landscape define this portion of the northern Sierra Nevada foothills. The map documents a terrain deeply altered by the quest for gold, with remnants of massive placer operations visible near North Bloomfield and North Columbia. The water infrastructure required for these efforts is preserved through an intricate network of ditches and canals, including the Cascade Ditch and Cascade Canal, which historically moved water from higher elevations to the diggings.

By the mid-20th century, the landscape began to accommodate modern utility and recreation, marked by the expansion of Scotts Flat Reservoir. Cultural landmarks like the Blue Tent School and a Pioneer Grave on Washington Ridge offer tangible links to the 19th-century families who settled these ridges. From the South Fork Yuba River at Edwards Crossing to the deep scars of the Placer Diggings, the map captures the transition from an industrial mining frontier to a managed national forest.