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1967 Map of Jamison Ridge

Name: 1967 Topographic Map of Jamison Ridge
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

The Middle Fork Eel River snakes through this Mendocino County landscape, carving a deep canyon between Jamison Ridge and Jarbow Ridge. This late 1960s survey captures the area's transition into a remote ranching and recreation zone, anchored by the Eden Valley Ranch and its associated Landing Strip. The presence of several family-named landmarks like Thrash Ranch and Marks Place suggests the persistence of private landholdings in the rugged terrain between Round Valley and the southern ridges.

Water sources are vital and meticulously mapped here, from the Pioneer Cem near Mill Creek to a high concentration of springs such as Yellowjacket Spring, Martini Spring, and Conner Cabin Spring. The interior is crisscrossed by a network of a Trail and a Jeep Trail, providing access to high points like Bald Mountain and Negro Head. These paths follow the natural contours of the Pedro Ridge and Paradise Valley, documenting the foot and vehicle routes used by locals and ranchers during this era.