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1900s (20th Century) Maps of Portola Hills, Lake Forest

Explore 20 historic maps of Portola Hills 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 Portola Hills'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 Portola Hills's history through authentic maps from the 1900s. This is your window into the past.

Portola Hills, Lake Forest maps

(20)
  1. 1901 Map of Southern California Sheet No. 1
    1901 Map of Southern California Sheet No. 1
    1901 Southern California Sheet No. 1
    1901 Print · USGS
    Covers Portola Hills, including Los Angeles, Long Beach, and other nearby areas
    6 unique versions available
  4. 1902 Map of Corona
    1902 Map of Corona
    1902 Corona
    1902 Print · USGS
    Covers Portola Hills, including Anaheim, Santa Ana, and other nearby areas
    7 unique versions available
  7. 1904 Map of Southern California Sheet No. 1, 1905 Print
    1904 Map of Southern California Sheet No. 1, 1905 Print
    1904 Southern California Sheet No. 1
    1905 Print · USGS
    Covers Portola Hills, including Los Angeles, Long Beach, and other nearby areas
    2 unique versions available
  10. 1935 Map of El Toro
    1935 Map of El Toro
    1935 El Toro
    1935 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
    4 unique versions available
  13. 1942 Map of Santiago Peak, 1943 Print
    1942 Map of Santiago Peak, 1943 Print
    1942 Santiago Peak
    1943 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
    3 unique versions available
  16. 1947 Map of Santa Ana, 1949 Print
    1947 Map of Santa Ana, 1949 Print
    1947 Santa Ana
    1949 Print · USGS
    Covers Portola Hills, including San Diego, Anaheim, and other nearby areas
  19. 1949 Map of Santa Ana
    1949 Map of Santa Ana
    1949 Santa Ana
    1949 Print · USGS
    Covers Portola Hills, including San Diego, Anaheim, and other nearby areas
  22. 1949 Map of El Toro, 1958 Print
    1949 Map of El Toro, 1958 Print
    1949 El Toro
    1958 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
    2 unique versions available
  25. 1950 Map of El Toro
    1950 Map of El Toro
    1950 El Toro
    1950 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
    2 unique versions available
  28. 1954 Map of Santiago Peak, 1955 Print
    1954 Map of Santiago Peak, 1955 Print
    1954 Santiago Peak
    1955 Print · USGS
    Covers Portola Hills, including Mission Viejo, Lake Forest, and other nearby areas
    7 unique versions available
  31. 1956 Map of Santa Ana
    1956 Map of Santa Ana
    1956 Santa Ana
    1956 Print · USGS
    Covers Portola Hills, including San Diego, Anaheim, and other nearby areas
  34. 1959 Map of Santa Ana, 1971 Print
    1959 Map of Santa Ana, 1971 Print
    1959 Santa Ana
    1971 Print · USGS
    Covers Portola Hills, including San Diego, Anaheim, and other nearby areas
    3 unique versions available
  37. 1960 Map of Santa Ana
    1960 Map of Santa Ana
    1960 Santa Ana
    1960 Print · USGS
    Covers Portola Hills, including San Diego, Anaheim, and other nearby areas
    2 unique versions available
  40. 1965 Map of Santa Ana
    1965 Map of Santa Ana
    1965 Santa Ana
    1965 Print · USGS
    Covers Portola Hills, including San Diego, Anaheim, and other nearby areas
  43. 1968 Map of El Toro, 1970 Print
    1968 Map of El Toro, 1970 Print
    1968 El Toro
    1970 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
    9 unique versions available
  46. 1974 Map of El Toro, 1975 Print
    1974 Map of El Toro, 1975 Print
    1974 El Toro
    1975 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
  49. 1974 Map of Santiago Peak, 1975 Print
    1974 Map of Santiago Peak, 1975 Print
    1974 Santiago Peak
    1975 Print · USGS
    Covers Portola Hills, including Mission Viejo, Lake Forest, and other nearby areas
  52. 1983 Map of Santa Ana
    1983 Map of Santa Ana
    1983 Santa Ana
    1983 Print · USGS
    Covers Portola Hills, including Anaheim, Santa Ana, and other nearby areas
  55. 1997 Map of Santiago Peak, 2000 Print
    1997 Map of Santiago Peak, 2000 Print
    1997 Santiago Peak
    2000 Print · USGS
    Covers Portola Hills, including Mission Viejo, Lake Forest, and other nearby areas
  58. 1997 Map of El Toro, 2000 Print
    1997 Map of El Toro, 2000 Print
    1997 El Toro
    2000 Print · USGS
    Covers Portola Hills, including Irvine, Mission Viejo, and other nearby areas
End of results
Showing maps 1-20 of 20

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Frequently asked questions

  • What are the different types of historical maps available for Portola Hills?
  • What is the oldest map of Portola Hills?
  • Where can I purchase historical maps of Portola Hills for my home or office?
  • Where can I download high-res historical maps of Portola Hills?
  • Are there historical topographic maps available for Portola Hills?
  • Is there historical aerial imagery available for Portola Hills?
  • Where are historical maps of Portola Hills sourced from?