Old Maps of Jefferson County, Montana for Metal Detecting
Plan your next treasure hunt with 373 historic maps of Jefferson County. Find old homesites, ghost towns, trails, and gathering spots that may be lost to time — perfect for identifying promising metal detecting locations.
- Locate forgotten sites: Uncover places like long-lost settlements, abandoned rail lines, or gathering spots.
- Plan better hunts: Use map overlays combined with LiDAR or satellite views to narrow in on historically rich areas.
- Made for detectorists: Thousands of hobbyists use these maps to discover relics, coins, and hidden history.
Use these historic maps to boost your research and find new opportunities beneath the surface of Jefferson County.
Jefferson County, MT maps
(373)- 1886 Map of Fort Logan
1886 Fort Logan1886 Print · USGSCentral 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 - 1888 Map of Three Forks
1888 Three Forks1888 Print · USGSSouthwestern 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. - 1889 Map of Helena
1889 Helena1889 Print · USGSThe 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. - 1893 Map of Helena
1893 Helena1893 Print · USGSMontana'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 - 1893 Map of Dillon
1893 Dillon1893 Print · USGSSouthwestern 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 - 1894 Map of Three Forks
1894 Three Forks1894 Print · USGSSouthwestern 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. - 1895 Map of Three Forks
1895 Three Forks1895 Print · USGSSouthern 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 - 1899 Map of Boulder
1899 Boulder1899 Print · USGSJefferson 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 - 1899 Map of Helena
1899 Helena1899 Print · USGSThe 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 - 1899 Map of Helena, 1956 Print
1899 Helena1956 Print · USGSThe 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. - 1903 Map of Helena
1903 Helena1903 Print · USGSMontana's mining heartland comes alive at the dawn of the new century, from the state capital to the copper-rich summits above the Silver Bow. Trace the early rail lines serving Marysville, locate the historic barracks of Ft. Harrison, and follow the mountain trails through Mullan Pass.4 unique versions available - 1947 Map of Bozeman, 1948 Print
1947 Bozeman1948 Print · USGSBozeman and the surrounding mountain ranges are captured here just after the war, showing the vital rail and river networks of southwestern Montana. Genealogists and historians can trace routes to early settlements like Virginia City, Gallatin Gateway, and the mountain community of Jardine. - 1947 Map of Butte, 1949 Print
1947 Butte1949 Print · USGSWestern Montana at the peak of its rail-and-river era shows the vital connections between the mining and industrial centers of Butte and Helena. Researchers can trace the three major railroad lines serving mountain settlements like Garrison, Philipsburg, and Warm Springs.2 unique versions available - 1948 Map of Bozeman, 1951 Print
1948 Bozeman1951 Print · USGSSouthern Montana in the late 1940s is shown as a high-country crossroads of rail lines and river headwaters. Genealogists and historians can trace old town sites like Virginia City and McLeod alongside the Northern Pacific and Milwaukee Road railroads. - 1948 Map of White Sulphur Springs, 1951 Print
1948 White Sulphur Springs1951 Print · USGSMontana'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. - 1949 Map of Radersburg, 1953 Print
1949 Radersburg1953 Print · USGSRadersburg and the surrounding mountain gulches are captured here in the late 1940s during a period of transition for Montana's mining and ranching communities. Researchers can trace deep-rooted mining claims like the Black Friday Mines or locate rural landmarks such as the Crow Creek School and Riverside Ranch.5 unique versions available - 1950 Map of Devils Fence
1950 Devils Fence1950 Print · USGSJefferson County ranchlands and mining districts are meticulously detailed in this mid-century survey of the Boulder Valley region. Researchers can locate remote family landmarks such as the Quaintance Ranch, Boulder Valley Church, and the active Ida Mine.5 unique versions available - 1950 Map of Jefferson City, 1952 Print
1950 Jefferson City1952 Print · USGSMining districts in Jefferson and Lewis and Clark Counties are shown in high detail during the early fifties. Trace the history of the Northern Pacific rail line and dozens of old workings like the Grey Eagle Mine and Rimini.5 unique versions available - 1950 Map of Three Forks, 1953 Print
1950 Three Forks1953 Print · USGSThree Forks and the surrounding Gallatin Valley are captured here just after the war, showing the historic meeting of the rivers that form the Missouri. Genealogists and historians can trace the foundations of this ranching community through the Jefferson Sch, Fairview Cem, and the Climbing Arrow Ranch.4 unique versions available - 1950 Map of Jefferson Island, 1954 Print
1950 Jefferson Island1954 Print · USGSThe Jefferson River valley in the early 1950s reveals a landscape of industrial rail lines and established family ranchlands. Genealogists and local historians can locate early homesteads like Tribble Ranch, the Eureka School, and the South Boulder Cemetery.4 unique versions available - 1950 Map of East Helena, 1954 Print
1950 East Helena1954 Print · USGSThe 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 - 1950 Map of Clancy, 1954 Print
1950 Clancy1954 Print · USGSIn the mid-century Montana mountains, the mining district around Clancy and Elkhorn remains a network of high-altitude claims and forest outposts. Genealogists and historians can trace old operations like the Golden Age Mine and Elkhorn Skyline Mine or locate the Clancy Post Office.5 unique versions available - 1950 Map of Helena, 1954 Print
1950 Helena1954 Print · USGSThe Montana state capital and its mining-era outskirts are captured here just after the war, showing the city's growth alongside established military and medical sites. Researchers can trace the legacy of Unionville, locate the St Joseph Orphan Home, or explore the many gulches and mines that defined the early local economy.6 unique versions available - 1954 Map of Elk Park, 1956 Print
1954 Elk Park1956 Print · USGSThe high country of the Continental Divide near Butte comes into focus during the mid-fifties, showing the transition from industrial mining to the Deerlodge National Forest. Researchers can trace the Northern Pacific rail line past the Ruby Mine and old settlements at Woodville and McQueen.3 unique versions available - 1954 Map of Basin, 1956 Print
1954 Basin1956 Print · USGSJefferson and Powell Counties were centers of intense mountain industry in the mid-fifties, linked by the GREAT NORTHERN rail line. Researchers can trace dozens of individual lode and placer operations, including the Monarch Mine, Bullion Mine, and the local rail hub at Basin.3 unique versions available
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Top cities of Jefferson County
- Montana City historical maps
- Clancy historical maps
- Boulder historical maps
- Whitehall historical maps
- Cardwell historical maps
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