1949 Map of Mare Island

About this map

The Mare Island Naval Reservation anchors this post-war survey, marking a period of intense maritime and industrial activity along the northern reach of San Pablo Bay. On the eastern shore, the urban grid of Vallejo is dense with civic infrastructure like City Hall and schools such as St Vincents Sch and Lincoln Sch. Across the Mare Island Strait, the naval works and Guadalcanal Village highlight the area's strategic importance during the 1940s. Further south, the map details the industrial settlements of Oleum, Rodeo, and Hercules, where the Southern Pacific and Atchison Topeka and Santa Fe railroads trace the shoreline. This alignment of heavy industry, rail transport, and military presence defines the Carquinez region's mid-century landscape, from the mud flats of Pinole Shoals to the hilltop developments of Vallejo Heights.