1970s Maps of Ontario, California
Explore 1 historic maps of Ontario from the 1970s. These maps offer a rare glimpse into what life looked like during the 1970s — 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 1970s, 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 1970s, 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 1970s. This is your window into the past.
Ontario, CA maps
(1)- 1975 Map of Corona North, 1979 Print
1975 Corona North1979 Print · USGSThe Riverside area comes into sharp focus during the mid-seventies as agricultural fields begin to give way to suburban development. Local historians can trace the intricate landscape of the Prado flood basin and the growing neighborhoods of Riverside during this period of transition.
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Frequently asked questions
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