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2021 Map of Downieville

Name: 2021 Topographic Map of Downieville
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Downieville serves as the focal point of this Sierra County survey, situated at the confluence of the Downie River and the North Yuba River. As the county seat, it contains the Sierra County Courthouse and sits surrounded by the gold-mining heritage of the northern Tahoe National Forest. The landscape is defined by steep ridges and narrow flats along the waterways, where names like Jersey Flat, Durgan Flat, and Zumwalt Flat indicate historical settlement patterns near the rivers.

Transport and extraction history are visible through the network of old routes like Henness Pass Rd and Old Toll Bridge Rd, as well as industrial sites like Oxford Mill and Red Dog. Significant terrain features such as Grizzly Peak and Pliocene Ridge overlook deep ravines, while local landmarks including Slate Castle and the Downieville Cem provide points of interest for genealogists and researchers mapping the evolution of this mountain community.