Old Maps of San Luis Obispo, California
Explore 38 old maps of San Luis Obispo, spanning from 1897 to today. These high-resolution historic maps reveal how streets, neighborhoods, landmarks, and natural features evolved over time — perfect for genealogy, metal detecting, research, and local history exploration.
What you can do with these maps:
- See how San Luis Obispo changed over time: Compare historical maps to modern-day views to trace roads, homesites, rail lines & more.
- View detailed metadata: Each map includes creators, publishers, year, scale, and archive source.
- Overlay maps with satellite & LiDAR: Visualize the past alongside modern tools to explore terrain & human change.
- Trusted historical sources: Maps sourced from the USGS, Library of Congress, and other archives.
- Access maps your way: View online, download high-res files, or order prints for personal or research use.
Start exploring old maps of San Luis Obispo to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.
San Luis Obispo, CA maps
(38)- 1897 Map of San Luis Obispo1897 San Luis Obispo1897 Print · USGSCoastal California in the late nineteenth century centers on the vital Southern Pacific Line as it carves through the Santa Lucia Range. Genealogists and historians can trace the early city grid of San Luis Obispo and rural stops like Goldtree and Cuesta.4 unique versions available
- 1897 Map of Arroyo Grande, 1903 Print1897 Arroyo Grande1903 Print · USGSCoastal San Luis Obispo County comes alive in the late nineteenth century as the railroad transforms old ranchos into bustling seaside towns. You can trace early industrial sites like the Asphalt Mines or locate historic coastal points such as Mallagh Landing and Sycamore Springs.5 unique versions available
- 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
- 1942 Map of San Luis Obispo1942 San Luis Obispo1942 Print · USGSSan Luis Obispo and the surrounding Santa Lucia Range are captured here just before the mid-century expansion, centered on the Southern Pacific rail line. Researchers can trace early campus boundaries at the California Polytechnic School and find rural landmarks like Stowe Sch and Eagle Ranch.2 unique versions available
- 1942 Map of Arroyo Grande1942 Arroyo Grande1942 Print · USGSThe San Luis Obispo coastline and the fertile Cienega Valley are shown here in the early 1940s, as steam and narrow-gage rails still shaped the local economy. Genealogists can locate vanished schools like Belleview Sch and trace the paths of the Pacific Coast Railway and Southern Pacific Railroad through Oceano and Edna.3 unique versions available
- 1947 Map of San Luis Obispo, 1948 Print1947 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 Obispo1948 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 Arroyo Grande, 1953 Print1952 Arroyo Grande1953 Print · USGSThe Central Coast comes alive in the early fifties as coastal tourism and inland agriculture thrive side-by-side. Genealogists and historians can trace the Southern Pacific RR corridor through Grover City, locate family landmarks like Branch School, or study the Sand Dunes and lakes around Oceano.3 unique versions available
- 1952 Map of San Luis Obispo, 1954 Print1952 San Luis Obispo1954 Print · USGSSan Luis Obispo County in the early fifties shows a landscape of burgeoning colleges, military grounds, and historic mines. Trace the Southern Pacific rail line as it winds past Santa Margarita and the Pick and Shovel Mine.2 unique versions available
- 1956 Map of San Luis Obispo, 1963 Print1956 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 Obispo1957 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 Obispo1958 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.
- 1965 Map of Lopez Mountain, 1966 Print1965 Lopez Mountain1966 Print · USGSThe backcountry of San Luis Obispo County is captured here in the mid-sixties, showing the intersection of forest service management and early industrial exploration. Researchers can trace remote sites like the Sulphur Pots, the Upper Lopez Campground, and a lone Oil Well near the Salinas River.4 unique versions available
- 1965 Map of Arroyo Grande NE, 1967 Print1965 Arroyo Grande NE1967 Print · USGSThe Central Coast hinterlands near Edna were a hub of rail activity and oil production in the mid-sixties. Genealogists and local historians can trace the foundations of the community through several local schools, the Southern Pacific corridor, and the Arroyo Grande Oil Field.6 unique versions available
- 1965 Map of Pismo Beach, 1967 Print1965 Pismo Beach1967 Print · USGSThe Central Coast is documented during the mid-1960s as the seaside towns of the San Luis Obispo Bay began to expand. Genealogists and local historians can trace family-named sites like Squire Canyon and Gragg Canyon or locate early landmarks like Ontario Hot Springs and the Southern Pacific line.4 unique versions available
- 1965 Map of San Luis Obispo, 1967 Print1965 San Luis Obispo1967 Print · USGSSan Luis Obispo and its surrounding hills are captured here in the mid-1960s, showing a growing college town and its vital rail and military links. Researchers can trace historic landmarks like the Old Mission, the rugged path to Cuesta Pass, and the sprawl of Cal Poly.5 unique versions available
- 1976 Map of San Luis Obispo, 1980 Print1976 San Luis Obispo1980 Print · USGSThe city of San Luis Obispo and its surrounding hills appear in striking photographic detail in the mid-1970s. Researchers can trace the exact footprint of the city and the military facilities at Camp San Luis Obispo and Bishop.
- 1981 Map of San Luis Obispo1981 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
- 1995 Map of San Luis Obispo, 2000 Print1995 San Luis Obispo2000 Print · USGSSan Luis Obispo and its surrounding volcanic peaks are captured in the mid-1990s as the city and university expand. Researchers can trace the legacy of the Southern Pacific RR through Cuesta Pass or locate ancestral sites like the Catholic Cem and Old Mission San Luis Obispo de Tolosa.
- 1995 Map of Arroyo Grande NE, 2000 Print1995 Arroyo Grande NE2000 Print · USGSThe San Luis Obispo coastline and its inland canyons come into focus in the mid-1990s as suburban growth reaches the edge of historic land grants. Genealogists and local historians can trace school sites like Independence School and Brauch School, or the boundaries of the Santa Manuela Grant.
- 1995 Map of Lopez Mountain, 2000 Print1995 Lopez Mountain2000 Print · USGSThe Santa Lucia Range in the mid-nineties shows a landscape of protected wilderness and historic land grants. Genealogists and hikers can trace remote locations like Upper Lopez Campsite, the Salinas River, and peaks like Gay Mountain.
- 1998 Map of Pismo Beach, 2002 Print1998 Pismo Beach2002 Print · USGSThe Central California coast near the end of the century shows a unique balance of rugged canyons and expanding seaside towns. Researchers can trace the development of Pismo Beach and Avila Beach, or locate landmarks like the County Wharf and the Pismo Lake Ecological Reserve.
- 2012 Map of Pismo Beach, 2012 Print2012 Pismo Beach2012 Print · USGSCovers San Luis Obispo, including Grover Beach, Pismo Beach, and other nearby areas
- 2012 Map of Arroyo Grande NE, 2012 Print2012 Arroyo Grande NE2012 Print · USGSCovers San Luis Obispo, including Arroyo Grande, Grover Beach, and other nearby areas
- 2012 Map of Lopez Mountain, 2012 Print2012 Lopez Mountain2012 Print · USGSCovers San Luis Obispo, including San Luis Obispo County, United States, and other nearby areas
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