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1980 Map of Roop Mountain

Name: 1980 Topographic Map of Roop Mountain
Creator: U.S. Geological Survey
Published: 1980
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1980

About this map

Lassen National Forest terrain dominates this 1980 study, characterized by high-elevation peaks and remote ranching outposts. The topographic detail captures the rugged transition from the heights of Roop Mountain and Goat Mountain down to the drainage basins of the Susan River and Willard Creek. Local land use is evident in the presence of the Willard Ranch and Bannel Ranch, along with scattered resource extraction sites like a Quarry and a Borrow Pit near the eastern boundary.

Hydrological features are particularly dense, showing the reliance on specific water sources in this landscape. Numerous named sites such as Beartrap Spring and Big Spring are documented, alongside the engineered capacity of the Hog Flat Reservoir. The map also preserves the memory of local nomenclature with curiously named landmarks like Devils Corral and Crazy Harry Gulch, providing a detailed view of the area before modern developments may have altered these back-country routes.