1985 Map of Derby Dam

About this map

The Truckee River carves a critical path between the Pah Rah Range and the Virginia Range in this mid-1980s study of western Nevada. This corridor has long served as a vital transportation and irrigation artery, evidenced here by the presence of the Emigrant Trail running parallel to the Southern Pacific railroad. The most significant engineering feature is the Derby Dam, which diverts river water into the Truckee Canal for regional agricultural use. Industrial activity is visible in the southeastern quadrant, where the Celatom Mine and associated Tailing Pond operate near the Southern Pacific tracks. Small rail-side settlements like Clark and Thisby punctuate the line, while a Historical Monument near the river bend marks the area's significance to earlier travelers.