1900-1909 Maps of Ontario, California
Explore 5 historic maps of Ontario from 1900-1909. 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, CA maps
(5)- 1900 Map of Cucamonga
1900 Cucamonga1900 Print · USGSSan Bernardino and Los Angeles Counties are shown here during the late nineteenth-century citrus boom, before urban sprawl merged these distinct agricultural colonies. Trace early rail lines through Ioamosa, Claremont, and Chino, or locate the isolated Toll House and Power House in the northern canyons. - 1901 Map of Southern California Sheet No. 1
1901 Southern California Sheet No. 11901 Print · USGSGreater Los Angeles at the dawn of the twentieth century is a landscape of growing citrus towns and a burgeoning rail network. Genealogists and historians can trace the early gridded streets of Hollywood and Pasadena or locate landmarks like Bear Lake and the Cahuilla Indian Reservation.6 unique versions available - 1902 Map of Corona
1902 Corona1902 Print · USGSThe Orange County and Riverside borderlands at the start of the 1900s show an era of rapid rail expansion and water engineering. Researchers can trace the early footprints of Anaheim and Orange or find vanished industry at the Santiago Coal Mine.7 unique versions available - 1903 Map of Cucamonga
1903 Cucamonga1903 Print · USGSThe Inland Empire is shown at a pivotal moment of agricultural expansion in the early twentieth century, when irrigation was transforming the valley. Trace the early rail networks of the Southern Pacific and the Santa Fe through citrus-growing centers like Ontario, Cucamonga, and Ioamosa.11 unique versions available - 1904 Map of Southern California Sheet No. 1, 1905 Print
1904 Southern California Sheet No. 11905 Print · USGSSouthern California at the dawn of the twentieth century shows a landscape of citrus groves and coastal towns connected by rail. Genealogists and historians can trace early settlements like San Juan Capistrano, find remote sites like the Rose Mine, and study the original water systems of the Santa Ana River.2 unique versions available
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Top cities near Ontario
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Top neighborhoods of Ontario
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Frequently asked questions
- What are the different types of historical maps available for Ontario?
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