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1900s (20th Century) Maps of Boulder, Colorado

Explore 29 historic maps of Boulder 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 Boulder'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 Boulder's history through authentic maps from the 1900s. This is your window into the past.

Boulder, CO maps

(29)
  1. 1902 Map of Boulder, 1957 Print
    1902 Map of Boulder, 1957 Print
    1902 Boulder
    1957 Print · USGS
    Covers Boulder, including Lyons, Jamestown, and other nearby areas
  4. 1904 Map of Niwot
    1904 Map of Niwot
    1904 Niwot
    1904 Print · USGS
    Covers Boulder, including Longmont, Lafayette, and other nearby areas
    3 unique versions available
  7. 1904 Map of Boulder
    1904 Map of Boulder
    1904 Boulder
    1904 Print · USGS
    Covers Boulder, including Lyons, Jamestown, and other nearby areas
    6 unique versions available
  10. 1906 Map of Blackhawk
    1906 Map of Blackhawk
    1906 Blackhawk
    1906 Print · USGS
    Covers Boulder, including Arvada, Idaho Springs, and other nearby areas
    5 unique versions available
  13. 1942 Map of Eldorado Springs
    1942 Map of Eldorado Springs
    1942 Eldorado Springs
    1942 Print · USGS
    Covers Boulder, including Arvada, Crescent Village, and other nearby areas
    4 unique versions available
  16. 1942 Map of Louisville
    1942 Map of Louisville
    1942 Louisville
    1942 Print · USGS
    Covers Boulder, including Westminster, Lafayette, and other nearby areas
    3 unique versions available
  19. 1944 Map of Eldorado Springs
    1944 Map of Eldorado Springs
    1944 Eldorado Springs
    1944 Print · USGS
    Covers Boulder, including Arvada, Crescent Village, and other nearby areas
    2 unique versions available
  22. 1950 Map of Louisville, 1955 Print
    1950 Map of Louisville, 1955 Print
    1950 Louisville
    1955 Print · USGS
    Covers Boulder, including Westminster, Lafayette, and other nearby areas
  25. 1950 Map of Niwot, 1957 Print
    1950 Map of Niwot, 1957 Print
    1950 Niwot
    1957 Print · USGS
    Covers Boulder, including Lafayette, Valmont, and other nearby areas
    4 unique versions available
  28. 1951 Map of Niwot
    1951 Map of Niwot
    1951 Niwot
    1951 Print · USGS
    Covers Boulder, including Lafayette, Valmont, and other nearby areas
  31. 1953 Map of Denver, 1964 Print
    1953 Map of Denver, 1964 Print
    1953 Denver
    1964 Print · USGS
    Covers Boulder, including Denver, Colorado Springs, and other nearby areas
    6 unique versions available
  34. 1954 Map of Greeley, 1966 Print
    1954 Map of Greeley, 1966 Print
    1954 Greeley
    1966 Print · USGS
    Covers Boulder, including Fort Collins, Thornton, and other nearby areas
    3 unique versions available
  37. 1957 Map of Denver
    1957 Map of Denver
    1957 Denver
    1957 Print · USGS
    Covers Boulder, including Denver, Colorado Springs, and other nearby areas
  40. 1957 Map of Greeley
    1957 Map of Greeley
    1957 Greeley
    1957 Print · USGS
    Covers Boulder, including Fort Collins, Thornton, and other nearby areas
  43. 1957 Map of Louisville, 1958 Print
    1957 Map of Louisville, 1958 Print
    1957 Louisville
    1958 Print · USGS
    Covers Boulder, including Westminster, Lafayette, and other nearby areas
    2 unique versions available
  46. 1957 Map of Boulder, 1959 Print
    1957 Map of Boulder, 1959 Print
    1957 Boulder
    1959 Print · USGS
    Covers Boulder, including Jamestown, Orodell, and other nearby areas
    3 unique versions available
  49. 1957 Map of Boulder, 1960 Print
    1957 Map of Boulder, 1960 Print
    1957 Boulder
    1960 Print · USGS
    Covers Boulder, including Lyons, Jamestown, and other nearby areas
    3 unique versions available
  52. 1958 Map of Greeley
    1958 Map of Greeley
    1958 Greeley
    1958 Print · USGS
    Covers Boulder, including Fort Collins, Thornton, and other nearby areas
  55. 1958 Map of Denver
    1958 Map of Denver
    1958 Denver
    1958 Print · USGS
    Covers Boulder, including Denver, Colorado Springs, and other nearby areas
  58. 1960 Map of Denver
    1960 Map of Denver
    1960 Denver
    1960 Print · USGS
    Covers Boulder, including Denver, Colorado Springs, and other nearby areas
  61. 1961 Map of Greeley
    1961 Map of Greeley
    1961 Greeley
    1961 Print · USGS
    Covers Boulder, including Fort Collins, Thornton, and other nearby areas
  64. 1964 Map of Greeley
    1964 Map of Greeley
    1964 Greeley
    1964 Print · USGS
    Covers Boulder, including Fort Collins, Thornton, and other nearby areas
  67. 1965 Map of Greeley
    1965 Map of Greeley
    1965 Greeley
    1965 Print · USGS
    Covers Boulder, including Fort Collins, Thornton, and other nearby areas
  70. 1965 Map of Louisville, 1967 Print
    1965 Map of Louisville, 1967 Print
    1965 Louisville
    1967 Print · USGS
    Covers Boulder, including Westminster, Lafayette, and other nearby areas
    7 unique versions available
  73. 1965 Map of Eldorado Springs, 1967 Print
    1965 Map of Eldorado Springs, 1967 Print
    1965 Eldorado Springs
    1967 Print · USGS
    Covers Boulder, including Arvada, Crescent Village, and other nearby areas
    8 unique versions available
Showing maps 1-25 of 29

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Frequently asked questions

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