1979 Map of Heenan Lake

About this map

The high-elevation mining landscape of Alpine County is dominated by the sprawling operations at Leviathan Mine, where ruins and tailings basins sit high above Leviathan Creek. This 1970s survey captures the region's intense extractive history, particularly around Colorado Hill, where a cluster of sites including the Zaca Mine, Globe Mine, and Lincoln Mine mark the mineral-rich slopes between Lexington Canyon and Monitor Creek. Historical surveying is represented by the Von Schmidt Line 1872, indicating the original border between California and Nevada.