
The Calaveras River winds through this landscape, marking the transition from the rolling terrain near Jenny Lind to the prominent heights of Gopher Ridge. This era captures a shifting water economy, evidenced by the presence of both the Old McCormick Reservoir and the extensive blue hatching of the New Hogan Reservoir, which identifies areas destined for submergence at higher elevations. To the south, the settlement of Milton sits near the Stanislaus County line, connected to the surrounding hills by an Old Railroad Grade that speaks to the region's earlier industrial peak. Mining remains a visible part of the geography, with the Plymouth Rock Mine and McCarty Mine located among the deep gulches and ridges. Family histories are rooted in properties like Tower Ranch and Gann Ranch, while the expansive Salt Spring Valley Reservoir dominates the southeastern quadrant.
28 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
3 editions found
1889 · Jackson
USGS Topo · 1:125,000
1892 · Jackson
USGS Topo · 1:125,000
1897 · Jackson
USGS Topo · 1:125,000
1902 · Jackson
USGS Topo · 1:125,000
1915 · Trigo
USGS Topo · 1:31,680
1916 · Bachelor Valley
USGS Topo · 1:31,680
1916 · Copperopolis
USGS Topo · 1:62,500
1942 · Farmington
USGS Topo · 1:62,500
1942 · Copperopolis
USGS Topo · 1:62,500
1944 · Valley Springs
USGS Topo · 1:62,500