1987 Map of Sylvania Canyon

About this map

The VON Schmidt Line cuts a historic path across this high-altitude landscape, marking the complex boundary between Nevada and California. This 1987 survey documents the rugged intersection of the Sylvania Mountains and the arid expanse of Fish Lake Valley. The map records a series of survey monuments along the border, including State Boundary Mon 75 and State Boundary Mon 76, which trace the legacy of early western boundary disputes and geographical definition. Evidence of the region's mineral history is visible through high-country mining operations like the Sierra Mine and Oasis Mine, located near the head of Sylvania Canyon. The drainage of Palmetto Wash further defines the terrain, illustrating the remote and difficult environment that surveyors and miners navigated throughout the late 20th century.