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Historical Maps of Union County, Oregon

What stories do these 218 old maps tell about Union County's past? From 1901 to present day, these maps reveal the evolution of streets, neighborhoods, iconic landmarks, and natural features in stunning high-res detail. Whether you're a history enthusiast, genealogist, or professional in education, environmental work, or architecture, these maps are perfect for exploration, research, and discovery.

Discover Union County's history through maps:

  • Trace Union County's growth: Explore earlier and latest maps and editions to uncover how the region changed over time.
  • Examine technical details: Each map includes its creators, publishers, scale, dimensions, and full source information.
  • Layer maps with modern tools & imagery: Compare historical maps to modern-day with high-resolution satellite imagery and detailed LiDAR layers.
  • Sourced from trusted archives: Carefully preserved and digitized by institutions like the United Stated Geological Survey and the US Library of Congress.
  • Access in any format: View and explore in high resolution, download for offline use, or order a museum-quality print for yourself or a loved one.

Begin your journey into Union County's history with these remarkable must-see maps.

Union County, OR maps

(218)

  1. 1901 Map of Baker, 1934 Print
    1901 Map of Baker, 1934 Print
    1901 Baker
    1934 Print · USGS
    Covers portions of Union County, including Baker County, and others.
  2. 1901 Map of Baker, 1948 Print
    1901 Map of Baker, 1948 Print
    1901 Baker
    1948 Print · USGS
    Covers portions of Union County, including Baker County, and others.
  3. 1901 Map of Baker City
    1901 Map of Baker City
    1901 Baker City
    1901 Print · USGS
    Covers portions of Union County, including Baker City, and others.
  4. 1901 Map of Baker City, 1909 Print
    1901 Map of Baker City, 1909 Print
    1901 Baker City
    1909 Print · USGS
    Covers portions of Union County, including Baker City, and others.
  5. 1901 Map of Sumpter
    1901 Map of Sumpter
    1901 Sumpter
    1901 Print · USGS
    Covers portions of Union County, including Sumpter, Grant County, and others.
  6. 1901 Map of Sumpter, 1910 Print
    1901 Map of Sumpter, 1910 Print
    1901 Sumpter
    1910 Print · USGS
    Covers portions of Union County, including Sumpter, Grant County, and others.
  7. 1901 Map of Sumpter, 1939 Print
    1901 Map of Sumpter, 1939 Print
    1901 Sumpter
    1939 Print · USGS
    Covers portions of Union County, including Sumpter, Grant County, and others.
  8. 1901 Map of Sumpter, 1948 Print
    1901 Map of Sumpter, 1948 Print
    1901 Sumpter
    1948 Print · USGS
    Covers portions of Union County, including Sumpter, Grant County, and others.
  9. 1906 Map of Telocaset
    1906 Map of Telocaset
    1906 Telocaset
    1906 Print · USGS
    Covers portions of Union County, including Baker County, Wallowa County, and others.
  10. 1906 Map of Telocaset, 1932 Print
    1906 Map of Telocaset, 1932 Print
    1906 Telocaset
    1932 Print · USGS
    Covers portions of Union County, including Baker County, Wallowa County, and others.
Showing maps 1-10 of 218

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Frequently asked questions

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