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1987 Map of Sylvania Mts

Name: 1987 Topographic Map of Sylvania Mts
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

Mining operations and historical boundaries define this high-altitude landscape along the Nevada-California border in the late 1980s. The region is centered on the Palmetto Mountains and Sylvania Mountains, where the Von Schmidt Line marks a significant historical surveying boundary. Prospectors and mining companies left a dense footprint here, visible through the Palmetto Mine, the Sylvania Mine, and numerous Open Pit Mines scattered across the slopes.

Evidence of earlier habitation is found at the Palmetto (Site), where Ruins indicate a settlement that once supported the local extractive industry. Water sources were critical in this arid environment, with named locations such as Pigeon Spring, Mud Spring, and Log Spring serving as vital landmarks. The map also traces the rugged path of Sylvania Canyon and the drainage of Palmetto Wash, illustrating the harsh terrain that miners navigated to reach their claims.