Old Maps of Lewis and Clark County, Montana for Academic Research
Study the evolution of Lewis and Clark County with 702 high-resolution historic maps. Whether you're teaching, researching, or modeling changes in land use, these maps provide essential visual documentation of urban, environmental, and geographic change.
- Analyze long-term change: Track patterns in development, transportation, and natural features.
- Ideal for environmental or urban studies: Support academic projects with primary historical map data.
- Use in the classroom or lab: Educators and researchers rely on these maps to bring historical context to life.
These maps are a powerful tool for teaching, research, and visualizing how Lewis and Clark County has changed over the decades.
Lewis and Clark County, MT maps
(702)- 1886 Map of Great Falls
1886 Great Falls1886 Print · USGSCentral Montana in the mid-1880s is defined by its great river systems and the early footprints of frontier outposts. Researchers can trace the early development of Great Falls, find the site of St. Peter's Mission, and locate river settlements like Truly and Fort Shaw.4 unique versions available - 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 - 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 - 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. - 1902 Map of Ovando, 1960 Print
1902 Ovando1960 Print · USGSMontana's mountain ranchlands come into focus at the turn of the century, centered on the valley around Ovando. Genealogists and historians can trace numerous family homesteads and early outposts, including Danaher's Ranch, Woodworth, and Blanchard's Ranch.2 unique versions available - 1903 Map of Saypo
1903 Saypo1903 Print · USGSTeton and Lewis and Clark counties appear at the dawn of the century as a landscape of remote mountain forest reserves and early prairie homesteads. Researchers can trace the holdings of pioneer families at Clark Bros Ranch and Campbell's Ranch or locate early industry at McGunks Sawmill and the local Coal Mine.7 unique versions available - 1903 Map of Coopers Lake
1903 Coopers Lake1903 Print · USGSLewis and Clark and Powell counties are shown at the turn of the century as the high-mountain ranching and mining frontier expanded. Genealogists and researchers can locate family landmarks like Lunds Ranch, Witmer Bros Ranch, and the Klondike Mine.3 unique versions available - 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 - 1905 Map of Ovando
1905 Ovando1905 Print · USGSThe Montana backcountry at the turn of the century is a landscape of isolated homesteads and forest reserves. Researchers can locate early family-owned landmarks like Danaher's Ranch and Jakway's Ranch or trace the early timber works at Logging Camp.2 unique versions available - 1920 Map of Choteau
1920 Choteau1920 Print · USGSNorth-central Montana in the early twentieth century shows a landscape being reshaped by irrigation canals and competing rail lines. Family historians can trace early settlements like Agawam, Bole, and Gilman, or locate regional landmarks like Priest Butte and Pishkun Reservoir. - 1936 Map of Silvertip
1936 Silvertip1936 Print · USGSThe Flathead National Forest wilderness in the mid-1930s was a land of isolated outposts and early aviation. Researchers can trace the early ranger station network at Spotted Bear Ranger Sta and remote landmarks like Indian Camp or Limestone Cabin.3 unique versions available - 1942 Map of Silvertip
1942 Silvertip1942 Print · USGSThe South Fork of the Flathead River backcountry is captured here in the late thirties, showing a wilderness managed by air and trail. Locate historic outposts like Big Prairie Ranger Sta, early airstrips, and remote cabins such as Limestone Cabin.2 unique versions available - 1943 Map of Hogan
1943 Hogan1943 Print · USGSCrossing the Continental Divide during the early twentieth century, this survey shows the high-country landscape between the Sun and Dearborn rivers. Researchers can trace early settlements like Stearns and Hogan, or find remote landmarks such as Silver Camp and the Dry Creek Reservoir Site. - 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 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. - 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 Canyon Ferry, 1952 Print
1950 Canyon Ferry1952 Print · USGSBroadwater and Lewis and Clark counties are captured here in the mid-century as the Missouri River valley underwent massive change. Genealogists and historians can trace the transition from old settlements like York and Placer to the rising waters of Canyon Ferry Lake.3 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 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 Great Falls
1954 Great Falls1954 Print · USGSThe Missouri River valley in the mid-1950s is shown at a time of significant industrial and military growth. Genealogists and historians can locate early schools and rail stops like Tiger Butte Community Center, Fort Benton, and the Anaconda Wire Plant.4 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 - 1955 Map of Choteau, 1978 Print
1955 Choteau1978 Print · USGSWestern Montana during the mid-fifties is captured here as a land of rugged high-country wilderness and vital eastern plains irrigation. Genealogists and historians can locate remote outposts like Condon, the communal Miller Colony, and the rail stops of the Chicago Milwaukee St Paul and Pacific.
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