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1900s (20th Century) Maps of San Diego Country Estates, California

Explore 31 historic maps of San Diego Country Estates 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 San Diego Country Estates'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 Diego Country Estates's history through authentic maps from the 1900s. This is your window into the past.

San Diego Country Estates, CA maps

(31)
  1. 1901 Map of Elcajon
    1901 Map of Elcajon
    1901 Elcajon
    1901 Print · USGS
    San Diego's eastern valleys are shown at the turn of the century as agriculture and water infrastructure began to reshape the landscape. Trace the path of the San Diego Flume and its tunnels or the rail line serving Foster, Lakeside, and Elcajon.
  4. 1903 Map of Cuyamaca
    1903 Map of Cuyamaca
    1903 Cuyamaca
    1903 Print · USGS
    Inland San Diego County at the turn of the century reveals a landscape defined by new water infrastructure and rail lines. Genealogists and historians can trace early settlements like Lakeside, Dulzura, and the remote Honey Springs Ranch along the international border.
    6 unique versions available
  7. 1903 Map of Elcajon
    1903 Map of Elcajon
    1903 Elcajon
    1903 Print · USGS
    San Diego's interior transitions from rail-linked valleys to high reservations at the turn of the century. Trace the path of the San Diego Flume and find vanished railroad stops like Foster and Moreno alongside the growing Elcajon Valley.
    5 unique versions available
  10. 1903 Map of Ramona
    1903 Map of Ramona
    1903 Ramona
    1903 Print · USGS
    San Diego County's high country and interior valleys are captured here at the start of the twentieth century, during a time of mountain ranching and early gold mining. Researchers can trace the early footprints of Julian, Ramona, and Mesa Grande, alongside the boundaries of the San Jacinto Forest Reserve.
    6 unique versions available
  13. 1904 Map of Southern California Sheet No. 2
    1904 Map of Southern California Sheet No. 2
    1904 Southern California Sheet No. 2
    1904 Print · USGS
    Southern California during the early 1900s shows the transition from vast ranchos to coastal rail towns. Genealogists and researchers can trace the Southern California R.R. through Oceanside, explore old land grants like Mission Viejo, and locate early settlements from Fallbrook to Julian.
    5 unique versions available
  16. 1939 Map of El Cajon, 1955 Print
    1939 Map of El Cajon, 1955 Print
    1939 El Cajon
    1955 Print · USGS
    El Cajon and the San Diego River valleys appear in the late thirties as a network of citrus groves, cattle ranches, and tribal lands. Genealogists and researchers can trace the early footprints of Santee, the Edgemoor County Farm, and the Daly Mine.
    2 unique versions available
  19. 1939 Map of Santa Ysabel, 1956 Print
    1939 Map of Santa Ysabel, 1956 Print
    1939 Santa Ysabel
    1956 Print · USGS
    San Diego County's high country is captured here during the late 1930s, showing a transition from ranching valleys to mining canyons. Trace family history at Warner Ranch, explore the gold mines near Banner, or locate the Volcan Indian Sch.
    2 unique versions available
  22. 1942 Map of El Cajon
    1942 Map of El Cajon
    1942 El Cajon
    1942 Print · USGS
    Inland San Diego County unfolds in the early 1940s, showing a landscape of working ranches and river valleys before modern development. Genealogists and historians can trace family-named lands like Peale Ranch and early institutions such as Dehesa Sch and the Daky Mine.
  25. 1942 Map of Ramona, 1947 Print
    1942 Map of Ramona, 1947 Print
    1942 Ramona
    1947 Print · USGS
    Northern San Diego County ranching and forest lands are detailed here during the mid-1940s. Local researchers can trace family-named sites like Silvano Ranch or explore the boundaries of the San Pasqual Indian Reservation and Mesa Grande.
    2 unique versions available
  28. 1943 Map of Santa Ysabel
    1943 Map of Santa Ysabel
    1943 Santa Ysabel
    1943 Print · USGS
    San Diego County's high country is captured here during the early war years, showing a landscape of tribal reservations, cattle ranches, and mountain mining. Trace the history of remote outposts like Julian, the Santa Ysabel Chapel, and the Friday Mine.
  31. 1947 Map of Ramona
    1947 Map of Ramona
    1947 Ramona
    1947 Print · USGS
    San Diego’s inland valleys and mountain ranges appear in detail during the late 1940s as ranching and forestry shaped the region. Genealogists and local historians can locate early homesteads like Vineyard Ranch and trace the boundaries of the Mesa Grande Ind Res or San Pasqual Indian Reservation.
  34. 1947 Map of El Cajon
    1947 Map of El Cajon
    1947 El Cajon
    1947 Print · USGS
    The San Diego River valley and its surrounding foothills appear in the late thirties, centered on the growing community of El Cajon. Genealogists and historians can trace family holdings like Fanita Ranch or locate the Indian Cem and Dehesa Sch in the southern hills.
  37. 1947 Map of Santa Ana, 1949 Print
    1947 Map of Santa Ana, 1949 Print
    1947 Santa Ana
    1949 Print · USGS
    Southern California is depicted here in the late forties, showing the expansion of the Inland Empire and the Orange County coast. Researchers can trace the early layout of Palm Springs or locate long-standing tribal lands like the Pala Indian Reservation and Rincon Indian Res.
  40. 1949 Map of Santa Ana
    1949 Map of Santa Ana
    1949 Santa Ana
    1949 Print · USGS
    Southern California underwent a profound transformation in the late 1940s as military installations and citrus groves shared the landscape. Researchers can trace early coastal growth at Laguna Beach, military history at Camp Pendleton, and the rail corridors of the Pacific Electric.
  43. 1950 Map of San Diego, 1954 Print
    1950 Map of San Diego, 1954 Print
    1950 San Diego
    1954 Print · USGS
    Coastal San Diego and the Baja California border region come alive in this mid-century survey. Trace the early layout of National City and Chula Vista, or locate historic landmarks like the San Diego and Arizona Eastern RR and Fort Rosecrans.
  46. 1954 Map of San Diego
    1954 Map of San Diego
    1954 San Diego
    1954 Print · USGS
    San Diego and the northern reaches of Baja California are captured here during a decade of rapid post-war growth and military expansion. Researchers can trace the mid-century shoreline of Mission Beach, find established tribal lands like Capitan Grande Indian Reservation, and follow the border crossing into Tijuana.
  49. 1955 Map of San Diego
    1955 Map of San Diego
    1955 San Diego
    1955 Print · USGS
    Southern California underwent massive growth in the post-war years, as suburban development pushed into the canyons and foothills. Researchers can trace the mid-century infrastructure of Lindbergh Field, the Otay River, and numerous sites like Lemon Grove.
  52. 1955 Map of Ramona, 1957 Print
    1955 Map of Ramona, 1957 Print
    1955 Ramona
    1957 Print · USGS
    The town of Ramona and its surrounding valleys are captured here in the mid-1950s, showing a landscape of ranching and early mountain development. Researchers can trace the layout of Ramona and locate landmarks like Union High School, the Cem, and the remote Bassett Ranch.
    6 unique versions available
  55. 1955 Map of El Cajon Mtn, 1957 Print
    1955 Map of El Cajon Mtn, 1957 Print
    1955 El Cajon Mtn
    1957 Print · USGS
    San Diego County's back country is captured here in the mid-fifties, showing the intersection of tribal lands and early ranching life. Genealogists and historians can trace the foundations of Featherstone Ranch, find the Daly Mine, or locate the original site of El Monte Park.
    7 unique versions available
  58. 1956 Map of Santa Ana
    1956 Map of Santa Ana
    1956 Santa Ana
    1956 Print · USGS
    Southern California underwent massive mid-century transformation as suburban growth met major military and water projects. Trace the postwar expansion of Santa Ana and Riverside, the layout of Camp Pendleton, and the path of the Colorado River Aqueduct.
  61. 1958 Map of San Diego, 1961 Print
    1958 Map of San Diego, 1961 Print
    1958 San Diego
    1961 Print · USGS
    San Diego and its inland mountain ranges are captured here in the late fifties as coastal suburbs began to climb the mesas. Researchers can trace the mid-century footprint of Miramar Naval Air Station, the winding San Diego & Arizona Eastern Ry, and local landmarks like Cabrillo Nat Mon.
    4 unique versions available
  64. 1959 Map of Santa Ana, 1971 Print
    1959 Map of Santa Ana, 1971 Print
    1959 Santa Ana
    1971 Print · USGS
    Southern California is captured in a decade of transformation, from the Orange County coast to the desert floor. Researchers can trace the mid-century footprints of Camp Pendleton, March Air Force Base, and the original Ortega Highway.
    3 unique versions available
  67. 1960 Map of Santa Ana
    1960 Map of Santa Ana
    1960 Santa Ana
    1960 Print · USGS
    Southern California's coastal plains and inland deserts meet in this mid-century survey of the burgeoning Orange and Riverside county corridors. Researchers can trace the layout of early freeway systems, find tribal lands like the Soboba Indian Reservation, and locate military landmarks such as March Field.
    2 unique versions available
  70. 1960 Map of Santa Ysabel, 1962 Print
    1960 Map of Santa Ysabel, 1962 Print
    1960 Santa Ysabel
    1962 Print · USGS
    San Diego's backcountry in the early sixties was a landscape of historic stagecoach stops, gold mines, and mountain ranching. Genealogists and historians can trace old landmarks like the Butterfield Stage Station, the Banner Queen Mine, and the Spencer Valley Sch.
    3 unique versions available
  73. 1960 Map of Santa Ysabel, 1962 Print
    1960 Map of Santa Ysabel, 1962 Print
    1960 Santa Ysabel
    1962 Print · USGS
    Santa Ysabel and the surrounding San Diego County highlands are shown here in the early sixties. Researchers can trace rural school locations like Spencer Valley Sch and old mining sites including the Old Virginia Mine and Pride of the West Mine.
    5 unique versions available
Showing maps 1-25 of 31

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