1900s (20th Century) Maps of California Valley, California
Explore 11 historic maps of California Valley from the 1900s (20th Century). 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 California Valley'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 California Valley's history through authentic maps from the 1900s. This is your window into the past.
California Valley, CA maps
(11)- 1932 Map of La Panza
1932 La Panza1932 Print · USGSSan Luis Obispo County ranch lands meet the high desert during the early 1930s. Genealogists and local historians can trace family-named outposts like La Panza Ranch, the waters of Carnaza Spr, and the remote French Camp. - 1935 Map of La Panza
1935 La Panza1935 Print · USGSThe San Luis Obispo backcountry comes into focus during the mid-thirties, showing the rugged ranch lands between the mountains and the desert flats. Researchers can trace historic creek-side settlements like La Panza or locate water sources such as Mustang Spr and Carriaza Spr. - 1936 Map of La Panza
1936 La Panza1936 Print · USGSThe ranching and mining country of eastern San Luis Obispo County is captured here in the mid-1930s. Genealogists and researchers can trace family lands near La Panza Ranch, locate the camp at French Camp, or follow the course of Placer Creek.3 unique versions available - 1947 Map of San Luis Obispo, 1948 Print
1947 San Luis Obispo1948 Print · USGSCoastal California at the dawn of the Cold War reveals a landscape of massive military reservations and quiet seaside towns. Genealogists and researchers can trace the Southern Pacific rail line, old mining sites like Los Burros Mine, and local landmarks from Point Buchon to the Carrizo Plain. - 1948 Map of San Luis Obispo
1948 San Luis Obispo1948 Print · USGSCentral Coast life in the late 1940s is centered on the Southern Pacific rail line and expanding military bases. Genealogists can trace early rural life through Union School and local operations like the Klau Mine or Buena Vista Mine. - 1952 Map of La Panza, 1953 Print
1952 La Panza1953 Print · USGSThe high desert of eastern San Luis Obispo County is shown here in the early fifties during a period of ranching and early oil exploration. Genealogists and historians can locate remote outposts like La Panza Ranch, the Queen Bee Camp Ground, and topographic landmarks like Syncline Hill.3 unique versions available - 1956 Map of San Luis Obispo, 1963 Print
1956 San Luis Obispo1963 Print · USGSCentral California coastal and valley life unfolds in the mid-fifties, from the shoreline of Pismo Beach to the arid Carrizo Plain. Trace early travel routes along the Southern Pacific RR or locate family sites near the Templeton Cemetery and Paso Robles County Cemetery.5 unique versions available - 1957 Map of San Luis Obispo
1957 San Luis Obispo1957 Print · USGSCoastal California in the late fifties is defined by the steep Santa Lucia Range and the rail-connected hub of San Luis Obispo. Genealogists and researchers can trace rural life via Union School, the Southern Pacific line, and old sites like the Polar Star Mine. - 1958 Map of San Luis Obispo
1958 San Luis Obispo1958 Print · USGSThe Central Coast in the late fifties reveals a landscape of ranching and early tourism before the massive expansion of the modern era. Trace the path of the Southern Pacific through Atascadero or locate family roots in coastal towns like Cayucos and Cambria. - 1966 Map of California Valley, 1968 Print
1966 California Valley1968 Print · USGSThe eastern San Luis Obispo highlands are documented in the mid-1960s as the California Valley community began to take shape. Researchers can trace the development of the Carrizo Plain, the site of the Carrisa Plains Sch, and the remote Simmler area.4 unique versions available - 1981 Map of San Luis Obispo
1981 San Luis Obispo1981 Print · USGSThe Central Coast comes alive in the early eighties as the Southern Pacific railroad connects growing coastal towns and rugged inland ranges. Researchers can trace land grants like Santa Manuela, locate Cem sites, and explore the footprint of California Polytechnic State University.3 unique versions available
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