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Old Maps of Union County, Oregon for Academic Research

Study the evolution of Union County with 118 high-resolution historic maps. Whether you're teaching, researching, or modeling changes in land use, these maps provide essential visual documentation of urban, environmental, and geographic change.

  • Analyze long-term change: Track patterns in development, transportation, and natural features.
  • Ideal for environmental or urban studies: Support academic projects with primary historical map data.
  • Use in the classroom or lab: Educators and researchers rely on these maps to bring historical context to life.

These maps are a powerful tool for teaching, research, and visualizing how Union County has changed over the decades.

Union County, OR maps

(118)
  1. 1901 Map of Baker City
    1901 Map of Baker City
    1901 Baker City
    1901 Print · USGS
    Covers Union County, including Baker City, Haines, and other nearby areas
    4 unique versions available
  4. 1901 Map of Sumpter
    1901 Map of Sumpter
    1901 Sumpter
    1901 Print · USGS
    Covers Union County, including Sumpter, Granite, and other nearby areas
    4 unique versions available
  7. 1906 Map of Telocaset
    1906 Map of Telocaset
    1906 Telocaset
    1906 Print · USGS
    Covers Union County, including Union, Cove, and other nearby areas
    3 unique versions available
  10. 1951 Map of Desolation Butte, 1954 Print
    1951 Map of Desolation Butte, 1954 Print
    1951 Desolation Butte
    1954 Print · USGS
    Covers Union County, including Umatilla County, Grant County, and other nearby areas
    3 unique versions available
  13. 1953 Map of Pendleton, 1957 Print
    1953 Map of Pendleton, 1957 Print
    1953 Pendleton
    1957 Print · USGS
    Covers Union County, including Pendleton, Hermiston, and other nearby areas
    4 unique versions available
  16. 1954 Map of Eagle Cap, 1958 Print
    1954 Map of Eagle Cap, 1958 Print
    1954 Eagle Cap
    1958 Print · USGS
    Covers Union County, including Baker County, Wallowa County, and other nearby areas
    4 unique versions available
  19. 1955 Map of Baker, 1964 Print
    1955 Map of Baker, 1964 Print
    1955 Baker
    1964 Print · USGS
    Covers Union County, including Ontario, Baker City, and other nearby areas
    4 unique versions available
  22. 1955 Map of Grangeville, 1964 Print
    1955 Map of Grangeville, 1964 Print
    1955 Grangeville
    1964 Print · USGS
    Covers Union County, including Grangeville, Enterprise, and other nearby areas
    4 unique versions available
  25. 1955 Map of Canyon City, 1966 Print
    1955 Map of Canyon City, 1966 Print
    1955 Canyon City
    1966 Print · USGS
    Covers Union County, including John Day, Prairie City, and other nearby areas
    4 unique versions available
  28. 1956 Map of Pendleton
    1956 Map of Pendleton
    1956 Pendleton
    1956 Print · USGS
    Covers Union County, including Pendleton, Hermiston, and other nearby areas
  31. 1959 Map of Baker
    1959 Map of Baker
    1959 Baker
    1959 Print · USGS
    Covers Union County, including Ontario, Baker City, and other nearby areas
    2 unique versions available
  34. 1959 Map of Grangeville
    1959 Map of Grangeville
    1959 Grangeville
    1959 Print · USGS
    Covers Union County, including Grangeville, Enterprise, and other nearby areas
    2 unique versions available
  37. 1959 Map of Canyon City
    1959 Map of Canyon City
    1959 Canyon City
    1959 Print · USGS
    Covers Union County, including John Day, Prairie City, and other nearby areas
    2 unique versions available
  40. 1963 Map of La Grande SE, 1965 Print
    1963 Map of La Grande SE, 1965 Print
    1963 La Grande SE
    1965 Print · USGS
    Covers Union County, including La Grande, Island City, and other nearby areas
    2 unique versions available
  43. 1963 Map of Andies Prairie, 1965 Print
    1963 Map of Andies Prairie, 1965 Print
    1963 Andies Prairie
    1965 Print · USGS
    Covers Union County, including Umatilla County, United States, and other nearby areas
    3 unique versions available
  46. 1963 Map of Sanderson Spring, 1965 Print
    1963 Map of Sanderson Spring, 1965 Print
    1963 Sanderson Spring
    1965 Print · USGS
    Covers Union County, including Umatilla County, United States, and other nearby areas
    2 unique versions available
  49. 1963 Map of Meacham Lake, 1965 Print
    1963 Map of Meacham Lake, 1965 Print
    1963 Meacham Lake
    1965 Print · USGS
    Covers Union County, including Umatilla County, United States, and other nearby areas
    2 unique versions available
  52. 1963 Map of Tollgate, 1965 Print
    1963 Map of Tollgate, 1965 Print
    1963 Tollgate
    1965 Print · USGS
    Covers Union County, including Tollgate, Umatilla County, and other nearby areas
    3 unique versions available
  55. 1963 Map of Hilgard, 1966 Print
    1963 Map of Hilgard, 1966 Print
    1963 Hilgard
    1966 Print · USGS
    Covers Union County, including Hilgard, Perry, and other nearby areas
    3 unique versions available
  58. 1963 Map of Summerville, 1966 Print
    1963 Map of Summerville, 1966 Print
    1963 Summerville
    1966 Print · USGS
    Covers Union County, including Summerville, Umatilla County, and other nearby areas
    2 unique versions available
  61. 1964 Map of Partridge Creek, 1965 Print
    1964 Map of Partridge Creek, 1965 Print
    1964 Partridge Creek
    1965 Print · USGS
    Covers Union County, including United States, Oregon, and other nearby areas
    2 unique versions available
  64. 1964 Map of Howard Butte, 1965 Print
    1964 Map of Howard Butte, 1965 Print
    1964 Howard Butte
    1965 Print · USGS
    Covers Union County, including Wallowa County, United States, and other nearby areas
    3 unique versions available
  67. 1964 Map of Mc Intyre Creek, 1965 Print
    1964 Map of Mc Intyre Creek, 1965 Print
    1964 Mc Intyre Creek
    1965 Print · USGS
    Covers Union County, including Umatilla County, United States, and other nearby areas
    2 unique versions available
  70. 1964 Map of Cricket Flat, 1966 Print
    1964 Map of Cricket Flat, 1966 Print
    1964 Cricket Flat
    1966 Print · USGS
    Covers Union County, including United States, Oregon, and other nearby areas
    2 unique versions available
  73. 1964 Map of Minam, 1966 Print
    1964 Map of Minam, 1966 Print
    1964 Minam
    1966 Print · USGS
    Covers Union County, including Wallowa County, United States, and other nearby areas
    2 unique versions available
Showing maps 1-25 of 118

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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?

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Centuries