1951 Map of Sonoma

Transport and industry are well-defined, from the Northwestern Pacific corridor to localized quarries and gravel pits near the Arroyo Seco. Purple overlays indicate the late-1960s expansion of urban boundaries, contrasting with the earlier 1951 survey and highlighting the growth of residential pockets like Mission Highlands and El Verano. Local education and health infrastructure are noted through the Sassarini Sch, Sonoma Valley Hospital, and the secluded Mont La Salle School in the hills.