1900-1909 Maps of San Luis Obispo County, California
Explore 6 historic maps of San Luis Obispo County from 1900-1909. These maps offer a rare glimpse into what life looked like during the 1900s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.
Whether you're researching your family's past, planning a metal detecting trip, or studying how San Luis Obispo County's landscape evolved across the 1900s, these high-resolution maps are a powerful tool for exploring the history of this region.
- Focus on a specific era: All maps on this page are from the 1900s, giving you a focused view of this time period.
- See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
- Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
- View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.
Start exploring San Luis Obispo County's history through authentic maps from the 1900s. This is your window into the past.
San Luis Obispo County, CA maps
(6)- 1900 Map of San Luis1900 San Luis1900 Print · USGSCoastal California at the turn of the century shows a landscape where rail lines like the Pacific Coast Ry met the sea. Trace early industrial sites like the Asphalt Mines or follow the coast from Morro Rock to the pier at Port Harford.4 unique versions available
- 1902 Map of Santa Ynez1902 Santa Ynez1902 Print · USGSSanta Barbara County at the turn of the century was a land of high mountain meadows and isolated ranching outposts. Genealogists can trace family holdings at Cuyama Ranch or follow old trails through Salisbury Potrero and the San Rafael Mountains.
- 1903 Map of Mt. Pinos1903 Mt. Pinos1903 Print · USGSVentura and Kern counties at the start of the century remain largely a wild backcountry of forest reserves and high peaks. Genealogists and historians can trace early outposts like Pattiway, the high-altitude Frazier Borax Mine, and the Pine Mtn Lodge.7 unique versions available
- 1905 Map of Guadalupe1905 Guadalupe1905 Print · USGSThe Central California coast at the dawn of the century reveals a landscape shaped by the Southern Pacific R. R. and coastal trade. Genealogists and historians can trace rail-side settlements like Betteravia, Casmalia, and the old maritime Pt. Sal Landing.6 unique versions available
- 1905 Map of Santa Ynez1905 Santa Ynez1905 Print · USGSThe Santa Barbara backcountry is shown here at the start of the twentieth century, focusing on the high ridges and canyons of the San Rafael Mountains. Genealogists and hikers can trace early routes through San Marcos Pass or locate old sites like Wasioja and the Montgomery Potrero.5 unique versions available
- 1905 Map of Lompoc1905 Lompoc1905 Print · USGSSanta Barbara County at the turn of the century reveals a landscape of historic ranchos and early industry before the rise of modern development. Researchers can trace the early Pacific Coast RR and locate heritage sites like Santa Ynez Mission and the Union Oil Wells.7 unique versions available
End of results
Showing maps 1-6 of 6
Top cities of San Luis Obispo County
- San Luis Obispo historical maps
- Atascadero historical maps
- Paso Robles historical maps
- Arroyo Grande historical maps
- Grover Beach historical maps
- Morro Bay historical maps
See more
Frequently asked questions
- What are the different types of historical maps available for San Luis Obispo County?
- What is the oldest map of San Luis Obispo County?
- Where can I purchase historical maps of San Luis Obispo County for my home or office?
- Where can I download high-res historical maps of San Luis Obispo County?
- Are there historical topographic maps available for San Luis Obispo County?
- Is there historical aerial imagery available for San Luis Obispo County?
- Where are historical maps of San Luis Obispo County sourced from?





