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1900s (20th Century) Maps of The Causeway, Lewis and Clark County

Explore 7 historic maps of The Causeway 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 The Causeway'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 The Causeway's history through authentic maps from the 1900s. This is your window into the past.

The Causeway, Lewis and Clark County maps

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  1. 1948 Map of White Sulphur Springs, 1951 Print
    1948 Map of White Sulphur Springs, 1951 Print
    1948 White Sulphur Springs
    1951 Print · USGS
    Montana's capital and the high country of the Big Belt Mountains come alive in this mid-century survey. Trace the early hydroelectric developments at Canyon Ferry Dam or follow the historic rail lines through Ringling and Townsend.
  4. 1950 Map of East Helena, 1954 Print
    1950 Map of East Helena, 1954 Print
    1950 East Helena
    1954 Print · USGS
    The Missouri River valley near East Helena comes to life in the early fifties as a hub of rail transport and industrial mining. Genealogists and local historians can locate rural landmarks like Harmony School, St Anns Cem, and the Economy Mine.
    4 unique versions available
  7. 1958 Map of White Sulphur Springs, 1968 Print
    1958 Map of White Sulphur Springs, 1968 Print
    1958 White Sulphur Springs
    1968 Print · USGS
    Central Montana in the late fifties was a landscape of high-country mining and newly formed reservoirs. You can trace the rail-and-river economy of the era through sites like Canyon Ferry Lake, the East Pacific Mine, and the historic Fort Logan.
    3 unique versions available
  10. 1961 Map of White Sulphur Springs
    1961 Map of White Sulphur Springs
    1961 White Sulphur Springs
    1961 Print · USGS
    The Missouri River valley and central Montana highlands are captured here during a period of significant hydroelectric and rail expansion. Genealogists and rail historians can trace the paths of the Northern Pacific and Chicago Milwaukee St Paul and Pacific through settlements like White Sulphur Springs and Townsend.
  13. 1965 Map of White Sulphur Springs
    1965 Map of White Sulphur Springs
    1965 White Sulphur Springs
    1965 Print · USGS
    Central Montana in the late 1950s and early 60s reveals a rugged mountain landscape shaped by the Missouri River and the emergence of the Canyon Ferry Reservoir. Genealogists and local historians can trace legacy ranching sites, the Northern Pacific rail line, and remote schoolhouses like Cottonwood School and Spokane Creek School.
  16. 1972 Map of Lake Helena, 1975 Print
    1972 Map of Lake Helena, 1975 Print
    1972 Lake Helena
    1975 Print · USGS
    The Helena Valley in the mid-1970s shows a complex network of irrigation canals and rural institutions centered around Lake Helena. Researchers can trace old school sites like Mountain View Sch, the Masonic Home, and early mining activity at Prospects.
    2 unique versions available
  19. 1975 Map of Canyon Ferry Dam, 1994 Print
    1975 Map of Canyon Ferry Dam, 1994 Print
    1975 Canyon Ferry Dam
    1994 Print · USGS
    The Missouri River and Big Belt Mountains define this Montana landscape during the mid-seventies. Genealogists and historians can trace old mining sites like the Snowback Mine and industrial settlements including White City and Louisville.
End of results
Showing maps 1-7 of 7

Frequently asked questions

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