1948 Map of Paso Robles

About this map

The Salinas River valley corridor serves as the primary artery for settlement and transport in this 1948 survey, anchored by the town of Paso Robles and the historic San Miguel Mission. The Southern Pacific railroad parallels the river, connecting established communities like San Miguel and Wellsona with industrial and institutional landmarks. Notable features include the El Paso De Robles Sch (Reformatory) and the Fair Grounds, while the northwest corner is dominated by the Camp Roberts Military Reservation. The landscape is defined by the confluence of the Estrella River and various canyons such as Bridge Canyon and Peachy Canyon. Purple overprint revisions from 1979 illustrate the late 20th-century expansion of the urban area around Paso Robles and the development of the Paso Robles Municipal Airport, showing the transition from a traditional agricultural and rail-oriented valley to a modern regional center.