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Old Maps of Napa, California for Metal Detecting

Plan your next treasure hunt with 14 historic maps of Napa. Find old homesites, ghost towns, trails, and gathering spots that may be lost to time — perfect for identifying promising metal detecting locations.

  • Locate forgotten sites: Uncover places like long-lost settlements, abandoned rail lines, or gathering spots.
  • Plan better hunts: Use map overlays combined with LiDAR or satellite views to narrow in on historically rich areas.
  • Made for detectorists: Thousands of hobbyists use these maps to discover relics, coins, and hidden history.

Use these historic maps to boost your research and find new opportunities beneath the surface of Napa.

Napa, CA maps

(14)
  1. 1902 Map of Napa
    1902 Map of Napa
    1902 Napa
    1902 Print · USGS
    Covers Napa, including Concord, Vallejo, and other nearby areas
    6 unique versions available
  4. 1916 Map of Mare Island
    1916 Map of Mare Island
    1916 Mare Island
    1916 Print · USGS
    Covers Napa, including Vallejo, Richmond, and other nearby areas
    4 unique versions available
  7. 1942 Map of Mare Island
    1942 Map of Mare Island
    1942 Mare Island
    1942 Print · USGS
    Covers Napa, including Vallejo, Richmond, and other nearby areas
  10. 1942 Map of Sonoma
    1942 Map of Sonoma
    1942 Sonoma
    1942 Print · USGS
    Covers Napa, including Sonoma, Yountville, and other nearby areas
  13. 1947 Map of Santa Rosa
    1947 Map of Santa Rosa
    1947 Santa Rosa
    1947 Print · USGS
    Covers Napa, including Santa Rosa, Concord, and other nearby areas
  16. 1949 Map of Santa Rosa
    1949 Map of Santa Rosa
    1949 Santa Rosa
    1949 Print · USGS
    Covers Napa, including Santa Rosa, Concord, and other nearby areas
    2 unique versions available
  19. 1949 Map of Cuttings Wharf, 1956 Print
    1949 Map of Cuttings Wharf, 1956 Print
    1949 Cuttings Wharf
    1956 Print · USGS
    Covers Napa, including Vallejo, American Canyon, and other nearby areas
    8 unique versions available
  22. 1951 Map of Cuttings Wharf
    1951 Map of Cuttings Wharf
    1951 Cuttings Wharf
    1951 Print · USGS
    Covers Napa, including Vallejo, American Canyon, and other nearby areas
  25. 1951 Map of Napa, 1952 Print
    1951 Map of Napa, 1952 Print
    1951 Napa
    1952 Print · USGS
    Covers Napa, including Imola, Salvador, and other nearby areas
    6 unique versions available
  28. 1951 Map of Sonoma, 1958 Print
    1951 Map of Sonoma, 1958 Print
    1951 Sonoma
    1958 Print · USGS
    Covers Napa, including Sonoma, Yountville, and other nearby areas
    3 unique versions available
  31. 1958 Map of Santa Rosa, 1968 Print
    1958 Map of Santa Rosa, 1968 Print
    1958 Santa Rosa
    1968 Print · USGS
    Covers Napa, including Santa Rosa, Concord, and other nearby areas
    3 unique versions available
  34. 1962 Map of Santa Rosa
    1962 Map of Santa Rosa
    1962 Santa Rosa
    1962 Print · USGS
    Covers Napa, including Santa Rosa, Concord, and other nearby areas
  37. 1964 Map of Santa Rosa
    1964 Map of Santa Rosa
    1964 Santa Rosa
    1964 Print · USGS
    Covers Napa, including Santa Rosa, Concord, and other nearby areas
  40. 1983 Map of Napa
    1983 Map of Napa
    1983 Napa
    1983 Print · USGS
    Covers Napa, including Santa Rosa, Concord, and other nearby areas
End of results
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Frequently asked questions

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