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1940s Maps of Summit County, Colorado

Explore 4 historic maps of Summit County from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — 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 Summit County's landscape evolved across the 1940s, 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 1940s, 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 Summit County's history through authentic maps from the 1940s. This is your window into the past.

Summit County, CO maps

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  1. 1940 Map of Mount Powell
    1940 Map of Mount Powell
    1940 Mount Powell
    1940 Print · USGS
    The high peaks of the Gore Range and the Blue River valley are shown here during the late 1930s. Researchers can locate remote homesteads and schools such as Abbet Place, Smith Ranch, and the Hillcrest Sch among the alpine lakes.
    3 unique versions available
  4. 1942 Map of Leadville, 1943 Print
    1942 Map of Leadville, 1943 Print
    1942 Leadville
    1943 Print · USGS
    High in the Rockies during the early war years, this area served as a critical hub for military training and mining operations. Trace the rail lines of the Denver and Rio Grande Western RR and find local landmarks like the U. S. Fish Hatchery or the Adelaide mine.
  7. 1945 Map of Mount Lincoln
    1945 Map of Mount Lincoln
    1945 Mount Lincoln
    1945 Print · USGS
    Breckenridge and the surrounding mining districts were still active industrial hubs when this survey was updated in the mid-1940s. Researchers can trace historic claims and mineral landmarks such as USLM No 16 and the remote high-altitude site of Climax.
    2 unique versions available
  10. 1949 Map of Holy Cross, 1955 Print
    1949 Map of Holy Cross, 1955 Print
    1949 Holy Cross
    1955 Print · USGS
    The Eagle River valley and the high-altitude terrain of the Sawatch Range are captured here just after the war. You can trace the military history of Camp Hale and find old mining claims like the Matchless Mine or the remote Holy Cross City.
    7 unique versions available
End of results
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Frequently asked questions

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