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1800s (19th Century) Maps of Jefferson County, Montana

Explore 10 historic maps of Jefferson County from the 1800s (19th Century). These maps offer a rare glimpse into what life looked like during the 1800s — 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 Jefferson County's landscape evolved across the 1800s, 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 1800s, 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 Jefferson County's history through authentic maps from the 1800s. This is your window into the past.

Jefferson County, MT maps

(10)
  1. 1886 Map of Fort Logan
    1886 Map of Fort Logan
    1886 Fort Logan
    1886 Print · USGS
    Central Montana in the mid-1880s was a landscape of military outposts and early mining camps. Researchers can trace the frontier development of Radersburg and Crow Creek City or locate the historic military presence at Ft Logan.
    5 unique versions available
  4. 1888 Map of Three Forks
    1888 Map of Three Forks
    1888 Three Forks
    1888 Print · USGS
    Southwestern Montana was a land of mining camps and river junctions in the late nineteenth century, as the railroad began to connect established valleys. Genealogists can trace family roots through pioneer settlements like Virginia City, Salesville, and Spring Hill, or locate early crossings at Barton's Bridge.
  7. 1889 Map of Helena
    1889 Map of Helena
    1889 Helena
    1889 Print · USGS
    The Montana territory is caught in a moment of feverish railroad and mining expansion just before the close of the century. Genealogists and historians can trace early mountain routes and rail stations through settlements like Marysville, Wickes, and the bustling territorial hub of Helena.
  10. 1893 Map of Helena
    1893 Map of Helena
    1893 Helena
    1893 Print · USGS
    Montana's gold and silver boom is captured here in the late nineteenth century, showing the rail lines and mining camps radiating from the territorial capital. Genealogists and historians can trace the early layout of Helena or locate vanished sites like Blackfoot City and Gloster.
    2 unique versions available
  13. 1893 Map of Dillon
    1893 Map of Dillon
    1893 Dillon
    1893 Print · USGS
    Southwestern Montana’s mountain ranges and river basins were being reshaped by the mining and rail boom in the late nineteenth century. Genealogists and historians can trace the early layout of Dillon and vanished camps like Hecla, Rochester, and Argenta.
    5 unique versions available
  16. 1894 Map of Three Forks
    1894 Map of Three Forks
    1894 Three Forks
    1894 Print · USGS
    Southwestern Montana thrives along the river forks and rail lines during the mid-1880s. Genealogists and historians can trace early town sites like Pony, Logan, and Salesville while locating river crossings such as Fly's Bridge and Shedds Bridge.
  19. 1895 Map of Three Forks
    1895 Map of Three Forks
    1895 Three Forks
    1895 Print · USGS
    Southern Montana was a landscape of emerging rail towns and gold-country gulches during the mid-1890s. Genealogists and historians can trace the early footprints of Bozeman, locate Guns Ranch, and follow the Northern Pacific Railroad through Three Forks.
    5 unique versions available
  22. 1899 Map of Boulder
    1899 Map of Boulder
    1899 Boulder
    1899 Print · USGS
    Jefferson County was at the peak of its mining and railroad boom when this survey was conducted. Genealogists and historians can trace the foundations of Boulder and Wickes, as well as numerous hard-rock sites like the Hidden Treasure Mine and Amazon Mill.
    4 unique versions available
  25. 1899 Map of Helena
    1899 Map of Helena
    1899 Helena
    1899 Print · USGS
    The Montana capital and its surrounding gold and silver districts are documented here just before the new century. Genealogists and historians can trace rail lines like the Great Northern R. R. to active sites like Fort Harrison, the Winscott Mine, and Montana City.
    3 unique versions available
  28. 1899 Map of Helena, 1956 Print
    1899 Map of Helena, 1956 Print
    1899 Helena
    1956 Print · USGS
    The Montana gold country and the Continental Divide appear here at the close of the nineteenth century. Genealogists and historians can trace the mining and rail networks connecting Helena and Butte, including Pikes Peak Mill, Marysville, and Ft. Harrison.
End of results
Showing maps 1-10 of 10

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