The Digital Sanborn Maps collection was recently upgraded to ProQuest's new platform, making the maps even easier to explore.
The Sanborn Map Company was the primary American publisher of fire insurance maps from 1867-1970. Their maps chart the growth and development of cities and towns in the US for over 100 years. Our subscription includes the California maps and offers an amazing perspective on how California grew over time.
From the Browse menu, select the city you're interested in, and then the dates you want to view. Look at the Index Sheet to find specific streets. The maps also include details about water facilities, fire departments, and fire-related ordinances.
These are great if you're studying urban development or the history of a specific city or town in California. Or if you just like looking at cool old maps. Have fun exploring!