1900s (20th Century) Maps of Ontario, Oregon

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


Ontario, OR maps

(8)
  1. 1951 Map of Malheur Butte, 1952 Print
    1951 Map of Malheur Butte, 1952 Print
    1951 Malheur Butte
    1952 Print · USGS
    Covers Ontario, including Ontario Heights, Malheur County, and other nearby areas
    4 unique versions available

  2. 1951 Map of Moores Hollow, 1953 Print
    1951 Map of Moores Hollow, 1953 Print
    1951 Moores Hollow
    1953 Print · USGS
    Covers Ontario, including Ontario Heights, Malheur County, and other nearby areas
    3 unique versions available

  3. 1951 Map of Payette, 1953 Print
    1951 Map of Payette, 1953 Print
    1951 Payette
    1953 Print · USGS
    Covers Ontario, including Payette, Fruitland, and other nearby areas
    3 unique versions available

  4. 1955 Map of Baker, 1964 Print
    1955 Map of Baker, 1964 Print
    1955 Baker
    1964 Print · USGS
    Covers Ontario, including Baker City, Payette, and other nearby areas
    4 unique versions available

  5. 1959 Map of Baker
    1959 Map of Baker
    1959 Baker
    1959 Print · USGS
    Covers Ontario, including Baker City, Payette, and other nearby areas
    2 unique versions available

  6. 1974 Map of Payette, 1975 Print
    1974 Map of Payette, 1975 Print
    1974 Payette
    1975 Print · USGS
    Covers Ontario, including Payette, Fruitland, and other nearby areas

  7. 1980 Map of Weiser, 1993 Print
    1980 Map of Weiser, 1993 Print
    1980 Weiser
    1993 Print · USGS
    Covers Ontario, including Payette, Fruitland, and other nearby areas

  8. 1980 Map of Brogan, 1997 Print
    1980 Map of Brogan, 1997 Print
    1980 Brogan
    1997 Print · USGS
    Covers Ontario, including Huntington, Weatherby, and other nearby areas

End of results
Showing maps 1-8 of 8

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Frequently asked questions

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

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