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Old Maps of Castaic, California

Explore 41 old maps of Castaic, spanning from 1903 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 Castaic 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 Castaic to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Castaic, CA maps

(41)
  1. 1903 Map of Tejon
    1903 Map of Tejon
    1903 Tejon
    1903 Print · USGS
    The high passes and desert fringes of the Tehachapis come alive in this survey of the early twentieth-century frontier. Genealogists and historians can trace the foundations of Old Fort Tejon, follow the trail through Tejon Pass, or locate early mining sites like Frazier Mine.
    7 unique versions available
  4. 1903 Map of Camulos
    1903 Map of Camulos
    1903 Camulos
    1903 Print · USGS
    Southern California at the dawn of the twentieth century shows a landscape of ranchos and early rail towns. Trace the old routes through Simi and Camulos, or locate vanished stops like Ternez Siding and the coastal piers at Port Los Angeles.
    5 unique versions available
  7. 1903 Map of Santa Susana
    1903 Map of Santa Susana
    1903 Santa Susana
    1903 Print · USGS
    Northern Los Angeles and Ventura counties are captured here at the start of the twentieth century, as the railroad transformed the frontier. Trace early rail hubs at Newhall and Saugus, and find the engineering feats of the Santa Susana Tunnel and Fernando Tunnel.
    8 unique versions available
  10. 1931 Map of Castaic
    1931 Map of Castaic
    1931 Castaic
    1931 Print · USGS
    Castaic and the Santa Clara River valley appear here in the early 1930s, caught between the era of ranching and the rise of the oil industry. Researchers can find family landmarks like Sloane Ranch and the Val Verde Lodge, or trace the old U S Highway No 99.
  13. 1937 Map of Violin Canyon
    1937 Map of Violin Canyon
    1937 Violin Canyon
    1937 Print · USGS
    The northern Los Angeles County mountains in the late 1930s are captured here as a landscape of isolated ranches and early highways. Researchers can locate early family holdings like Cordova Ranch, follow the original path of Route 99, and spot the Airway Beacon used by early aviators.
    4 unique versions available
  16. 1940 Map of Castaic
    1940 Map of Castaic
    1940 Castaic
    1940 Print · USGS
    North of Los Angeles in the 1940s, the canyons around the Santa Clara River supported a network of isolated waystations and small schools. Genealogists can trace family footprints at Liveoak Sch, Valverde Lodge, or the agricultural Wayside Farm No 1.
    3 unique versions available
  19. 1941 Map of Santa Susana, 1964 Print
    1941 Map of Santa Susana, 1964 Print
    1941 Santa Susana
    1964 Print · USGS
    Ventura and Los Angeles counties meet in this 1940s landscape of steep canyons and early oil development. Researchers can trace the ranching history of Brandeis Ranch and Iverson Ranch or locate industrial sites like the Newhall-Potrero Oil Field.
    2 unique versions available
  22. 1943 Map of Santa Susana
    1943 Map of Santa Susana
    1943 Santa Susana
    1943 Print · USGS
    Southern California ranching and oil industries intersect in the early 1940s along the Santa Susana Mountains. Trace historic boundaries and sites like Tapo Ranch, the Newhall-Potrero Oil Field, and the Southern Pacific rail line.
  25. 1949 Map of Los Angeles
    1949 Map of Los Angeles
    1949 Los Angeles
    1949 Print · USGS
    Southern California and the South Coast appear at the onset of the post-war boom, from the Channel Islands to the Mojave Desert. Trace early aviation sites like Lockheed Air Terminal and mining history at the Redrock Quicksilver Mine and Redrover Mine.
    2 unique versions available
  28. 1952 Map of Val Verde, 1953 Print
    1952 Map of Val Verde, 1953 Print
    1952 Val Verde
    1953 Print · USGS
    The Santa Clara River valley and the petroleum-rich canyons of the Santa Susana Mountains are shown here in the early fifties. Researchers can trace historic family holdings like Hathaway Ranch and Lechler Ranch alongside the Southern Pacific line.
    7 unique versions available
  31. 1952 Map of Newhall, 1953 Print
    1952 Map of Newhall, 1953 Print
    1952 Newhall
    1953 Print · USGS
    The Santa Clarita Valley was a landscape of citrus, cattle, and crude oil in the early fifties before it became a suburban corridor. Genealogists and historians can trace old family holdings like Bonelli Ranch, find early schools such as Hart School, and locate the Oil Wells that fueled the local economy.
    6 unique versions available
  34. 1955 Map of Los Angeles
    1955 Map of Los Angeles
    1955 Los Angeles
    1955 Print · USGS
    The mid-century transformation of Southern California comes into focus as the urban sprawl of Los Angeles meets the wilderness of the Santa Monica Mountains. Researchers can trace the development of post-war suburbs alongside historic landmarks like the Santa Barbara Lighthouse and early industrial sites such as the Good Luck Mine.
  37. 1958 Map of Warm Springs Mountain, 1959 Print
    1958 Map of Warm Springs Mountain, 1959 Print
    1958 Warm Springs Mountain
    1959 Print · USGS
    In the late fifties, this portion of the Angeles National Forest balanced rugged water-power infrastructure with seasonal recreation. Researchers can trace the path of the Los Angeles Aqueduct Tunnel or locate historic sites like Warm Springs Camp and Daries Ranch.
    4 unique versions available
  40. 1958 Map of Whitaker Peak, 1959 Print
    1958 Map of Whitaker Peak, 1959 Print
    1958 Whitaker Peak
    1959 Print · USGS
    The mountain passes of northern Los Angeles County are captured here in the late fifties during the era of the Golden State Highway (Five Mile Grade). Researchers can trace old mountain routes and forest outposts like Paradise Ranch, Frenchmans Flat Campground, and the Whitaker Peak Lookout.
    5 unique versions available
  43. 1959 Map of Los Angeles
    1959 Map of Los Angeles
    1959 Los Angeles
    1959 Print · USGS
    Coastal California and the high desert met in a period of booming growth after the war. Researchers can trace early aviation and military history at the Point Mugu Air Missile Test Ctr or locate desert mining sites like the Double Eagle Mine.
    3 unique versions available
  46. 1966 Map of Los Angeles
    1966 Map of Los Angeles
    1966 Los Angeles
    1966 Print · USGS
    Southern California underwent a mid-century transformation as suburban grids reached the base of the San Gabriel Mountains. Researchers can trace the path of the Los Angeles Aqueduct or locate defense landmarks like Edwards Air Force Base.
  49. 1975 Map of Los Angeles, 1977 Print
    1975 Map of Los Angeles, 1977 Print
    1975 Los Angeles
    1977 Print · USGS
    Southern California is captured in a period of significant growth during the mid-seventies, showing the urban sprawl from the coast to the high desert. Researchers can trace the development of the Pacific Coast Hwy and find aerospace landmarks like Edwards Air Force Base and the Flight Test Center (NASA).
    2 unique versions available
  52. 1978 Map of Warm Springs Mtn, 1981 Print
    1978 Map of Warm Springs Mtn, 1981 Print
    1978 Warm Springs Mtn
    1981 Print · USGS
    Northern Los Angeles County is captured in detailed aerial imagery during the late seventies, showing the remote high-country terrain before modern shifts. Researchers can trace the layout of Warm Springs Camp and the winding route through Francisquito Canyon.
  55. 1979 Map of Los Angeles
    1979 Map of Los Angeles
    1979 Los Angeles
    1979 Print · USGS
    Southern California at the close of the 1970s reveals a sprawling network of suburban growth and massive infrastructure projects. Researchers can trace established rail lines like the Southern Pacific alongside newer settlements and landmarks like Virginia Colony and Griffith Park.
  58. 1981 Map of Lancaster, 1984 Print
    1981 Map of Lancaster, 1984 Print
    1981 Lancaster
    1984 Print · USGS
    The high desert and mountain passes of northern Los Angeles County come alive in this early eighties survey. Researchers can trace the San Andreas Rift Zone past remote outposts like Gorman or locate the historic Golden Queen Mine near the Mojave edge.
    2 unique versions available
  61. 1991 Map of Val Verde, 1995 Print
    1991 Map of Val Verde, 1995 Print
    1991 Val Verde
    1995 Print · USGS
    The northern Santa Susana Mountains meet the Santa Clara River in the 1990s, revealing an era of intense oil extraction and ranching. Genealogists and historians can trace family holdings like Lechler Ranch alongside industrial landmarks like Mayo Spur and the Ramona Oil Field.
  64. 1995 Map of Val Verde, 1999 Print
    1995 Map of Val Verde, 1999 Print
    1995 Val Verde
    1999 Print · USGS
    North of Los Angeles in the mid-nineties, the Santa Clara River valley remained a landscape of active oil fields and sprawling ranches. Genealogists and local historians can trace the foundations of Val Verde, locate the Cem near Hasley, and explore the legacy of Stanley Ranch.
  67. 1995 Map of Warm Springs Mountain, 1999 Print
    1995 Map of Warm Springs Mountain, 1999 Print
    1995 Warm Springs Mountain
    1999 Print · USGS
    The Angeles National Forest in the mid-1990s reveals a landscape of high ridgelines and essential water infrastructure north of Los Angeles. Historians and researchers can trace the development of Castaic Lake and locate specific sites like Powerhouse No 2 and Warm Springs Camp.
  70. 1995 Map of Newhall, 1999 Print
    1995 Map of Newhall, 1999 Print
    1995 Newhall
    1999 Print · USGS
    Santa Clarita and the Santa Clara River valley are shown in a period of significant growth during the mid-nineties. Local historians can trace the evolution of Saugus and Newhall or locate landmarks like the Newhall Oil Field and Saugus School.
  73. 1995 Map of Whitaker Peak, 1999 Print
    1995 Map of Whitaker Peak, 1999 Print
    1995 Whitaker Peak
    1999 Print · USGS
    The Los Angeles mountains come alive in the mid-nineties as the historic Old Ridge Route meets modern water infrastructure. Researchers can trace the legacy of mountain travel and energy at Paradise Ranch, the Beacon Forest Inn, and the Castaic Powerplant.
Showing maps 1-25 of 41

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