1950 Map of Tunnel Hill

About this map

Tunnel Hill and the Georgetown Divide define this mid-century landscape of northern California, where the Rubicon River carves a deep boundary between Placer and El Dorado Counties. This area is characterized by an extensive history of resource extraction, evidenced by numerous dispersed mining sites such as the Boedner Mine, Bedrock Mine, and Kenny Mine. The map reveals a transition toward organized forestry research within the Blodgett Experimental Forest and the broader Eldorado National Forest.