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1900s (20th Century) Maps of Union Hill, California

Explore 8 historic maps of Union Hill 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 Union Hill'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 Union Hill's history through authentic maps from the 1900s. This is your window into the past.

Union Hill, CA maps

(8)
  1. 1949 Map of Grass Valley, 1953 Print
    1949 Map of Grass Valley, 1953 Print
    1949 Grass Valley
    1953 Print · USGS
    Gold mining operations dominate the landscape around the Sierra foothills just after the war. Local researchers can trace the extent of the Empire Mine, find remote outposts like Anthony House, or locate rural schools such as Limekiln Sch and Forest Springs Sch.
    5 unique versions available
  4. 1949 Map of Grass Valley, 1954 Print
    1949 Map of Grass Valley, 1954 Print
    1949 Grass Valley
    1954 Print · USGS
    Grass Valley stands at a postwar industrial peak, surrounded by legendary gold mines and expanding mountain neighborhoods. Genealogists and historians can locate family plots at Greenwood Mem Cem and trace old school districts like Forest Springs Sch.
    3 unique versions available
  7. 1950 Map of Grass Valley
    1950 Map of Grass Valley
    1950 Grass Valley
    1950 Print · USGS
    Mid-century Nevada County is seen here during a period when massive gold mining operations still defined the Sierra foothills landscape. Genealogists and historians can trace the workings of the Empire Mine, find family plots at Greenwood Mem Cem, or locate the old Forest Springs Sch.
  10. 1958 Map of Chico, 1962 Print
    1958 Map of Chico, 1962 Print
    1958 Chico
    1962 Print · USGS
    Mid-century Northern California comes to life across the Central Valley and high Sierras as the postwar economy transformed the landscape. Trace the rail lines of the Southern Pacific RR, locate family roots near Chico Cem, or explore the early layout of Paradise and Beale Air Force Base.
    4 unique versions available
  13. 1960 Map of Chico
    1960 Map of Chico
    1960 Chico
    1960 Print · USGS
    The Northern California high country and Sacramento Valley meet in this 1960s-era landscape of mining towns and river settlements. Trace the rail-and-water economy of the gold country through the Empire Mine, Beale Air Force Base, and the Western Pacific Railroad.
  16. 1993 Map of Yuba City, 1994 Print
    1993 Map of Yuba City, 1994 Print
    1993 Yuba City
    1994 Print · USGS
    The Sacramento Valley and Sierra Nevada foothills meet in the 1990s, where agricultural bypasses and river networks surround the iconic Sutter Buttes. Researchers can trace the rail corridors of the Southern Pacific and Western Pacific through hubs like Marysville and Gridley.
  19. 1995 Map of Grass Valley
    1995 Map of Grass Valley
    1995 Grass Valley
    1995 Print · USGS
    Grass Valley and Nevada City are shown here in the mid-1990s, when the region's deep mining heritage met modern residential growth. Genealogists and historians can trace industrial sites like Empire Mine alongside St Patricks Cem and Peardale.
    2 unique versions available
  22. 1998 Map of Grass Valley, 2002 Print
    1998 Map of Grass Valley, 2002 Print
    1998 Grass Valley
    2002 Print · USGS
    Grass Valley and Nevada City represent the heart of the Gold Country during the late 1990s as the region balanced mining history with modern growth. Researchers can locate family landmarks like the Idaho-Maryland Mine, St Patricks Cem, and Granite Hill.
End of results
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Frequently asked questions

  • What are the different types of historical maps available for Union Hill?
  • What is the oldest map of Union Hill?
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  • Are there historical topographic maps available for Union Hill?
  • Is there historical aerial imagery available for Union Hill?
  • Where are historical maps of Union Hill sourced from?