
Sugarloaf Ridge and the Sonoma Mountains frame this 1950s landscape of the upper Sonoma Valley, where agricultural ranching meets the early institutional growth of the region. The map documents the Los Guilicos School For Girls and several local educational and community landmarks like the Dunbar Union Sch and McCormack Ranch. Transportation patterns are transitioning during this era, shown by the presence of the Northwestern Pacific Railroad Grade winding through the valley floor near settlements like Kenwood and Lawndale. The terrain is marked by numerous water sources, including Los Guilicos Warm Springs and the headwaters of Santa Rosa Creek, while several quarries on the slopes of Bennett Mtn suggest the active local industry of the period. Peaks such as Mt Hood and Bald Mtn dominate the northern horizons, illustrating the geographic isolation of these valley communities before mid-century expansion.
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5 maps found