1949 Map of Chicago Park

About this map

Placer mining and hydraulic heritage dominate the landscape of the Sierra Nevada foothills on this 1949 survey. Extensive placer diggings are visible across the northeastern terrain, particularly near the evocatively named settlements of You Bet and Red Dog. The map records a complex water infrastructure vital to the region's mining and agriculture, featuring the Chicago Park Ditch, Colfax Ditch, and Boardman Canal. Historical travel routes are well-preserved, with several Donner Trail markers identified along the ridges near Chicago Park.