2015 Map of Mount Saint Helena

About this map

Kellogg sits at the southern base of the Mayacmas Mountains in this modern-era study of the high-elevation borderlands where Sonoma, Lake, and Napa counties meet. The terrain is defined by its extreme relief, rising from the Knights Valley floor to the prominent peak of Mount Saint Helena. The northern reaches of the quadrangle include the geothermal landscape of The Geysers, reflecting the unique volcanic geology of the region. Between the ridges, small settlements like Bacon Flat and landmarks such as Schoolhouse Point suggest the historical human footprint in these canyons. A dense network of watercourses, including Big Sulphur Cr and Maacama Cr, drains the complex topography. Genealogists may find interest in Evergreen Cemetery located near Franz Valley Rd, while local historians can trace the paths of old routes like the Dry Creek Cutoff and Briggs Ranch Rd.