1900s (20th Century) Maps of Johnson County, Wyoming
Explore 141 historic maps of Johnson County 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 Johnson County'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 Johnson County's history through authentic maps from the 1900s. This is your window into the past.
Johnson County, WY maps
(141)- 1900 Map of Fort McKinney, 1956 Print
1900 Fort McKinney1956 Print · USGSJohnson County was a landscape of military outposts and early ranching during the 1890s. Researchers can trace the layout of the Fort Mc Kinney Military Reservation or locate family sites like the T A Ranch and Hepp Ranch. - 1901 Map of Cloud Peak
1901 Cloud Peak1901 Print · USGSThe high alpine country of the Big Horn range is captured here at the turn of the century just after its designation as a Forest Reserve. Researchers can trace the rugged headwaters of the Powder River and find remote landmarks like Lake Solitude, Black Butte, and Cloud Peak Lake.7 unique versions available - 1901 Map of Dayton
1901 Dayton1901 Print · USGSSheridan County and the Montana borderlands are captured here at the turn of the century as the railroad reshapes the valley. Researchers can trace early settlements and ranching outposts like Slack, Beckton, and the Morrow Ranch along the Tongue River.5 unique versions available - 1903 Map of Fort McKinney
1903 Fort McKinney1903 Print · USGSJohnson County at the turn of the century shows a landscape transitioning from military frontier to a ranching economy. Researchers can locate early family outposts like Trabing, Greub, and the T A Ranch alongside the Fort Mc. Kinney Military Reservation.3 unique versions available - 1909 Map of Sheridan, 1954 Print
1909 Sheridan1954 Print · USGSSheridan and the surrounding northern Wyoming ranchlands are captured here in the first decade of the twentieth century. Genealogists can trace family holdings at Wagoner Ranch or Big Red Ranch, and locate early rail stations like Verona and Ulm.2 unique versions available - 1911 Map of Sheridan
1911 Sheridan1911 Print · USGSSheridan and the surrounding northern Wyoming ranchlands are captured here during a period of rapid railroad expansion. Researchers can trace the Chicago Burlington and Quincy RR through Dietz and Verona, or locate early homesteads like Wagoner Ranch.2 unique versions available - 1953 Map of Hoe Ranch, 1954 Print
1953 Hoe Ranch1954 Print · USGSMid-century ranching along the Powder River is preserved here as it appeared in the early fifties. Genealogists and historians can trace family-named sites such as Irigaray Ranch, Falxa Camp, and the Hoe Ranch (Historical Site).3 unique versions available - 1953 Map of Dry Fork Ranch, 1954 Print
1953 Dry Fork Ranch1954 Print · USGSRanching outposts and historical trail stops define this corner of the Powder River Basin during the early 1950s. Genealogists and historians can trace old homesteads like the Dry Fork Ranch or locate the Cooks Seventeenmile Stage Station and Irvine Shearing Camp.3 unique versions available - 1953 Map of Fort Reno, 1954 Print
1953 Fort Reno1954 Print · USGSThe Powder River country in the 1950s reveals a landscape where frontier history meets mid-century ranching. Trace the legacy of the Old West through the Bozeman Trail and the site of Fort Reno, alongside family holdings like Urruty Ranch.3 unique versions available - 1953 Map of Fort Reno SE, 1954 Print
1953 Fort Reno SE1954 Print · USGSThe high plains of eastern Wyoming were a landscape of deep draws and artesian wells in the early fifties. Genealogists and historians can trace the remote Drew Ranch and essential water sources like First Well and the Diversion Dam along Willow Creek.4 unique versions available - 1953 Map of The Nipple, 1954 Print
1953 The Nipple1954 Print · USGSThe high plains of the Powder River Basin come into focus during the early fifties, documenting a landscape of isolated ranching and mineral exploration. Genealogists and historians can trace the locations of the Dobrenz Ranch (Aban'd) and Wilson Ranch (Aban'd) near Craney Spring.2 unique versions available - 1954 Map of House Creek, 1956 Print
1954 House Creek1956 Print · USGSJohnson County ranching country is captured here during the mid-1950s, showing the intersection of high-desert drainage basins and historic western migration routes. Researchers can trace the Bozeman Trail and locate family landmarks like the Windmill or the winding Powder River.3 unique versions available - 1954 Map of Linch, 1956 Print
1954 Linch1956 Print · USGSJohnson County was a hub of energy production in the mid-1950s, where industrial oil camps met traditional Wyoming ranching. Researchers can trace early petroleum infrastructure at the Sussex Oil Field or locate family sites like Tillman Ranch and the Irvine Cow Camp.3 unique versions available - 1954 Map of Taylor Ranch, 1956 Print
1954 Taylor Ranch1956 Print · USGSThe Johnson County high plains are captured here in the mid-fifties, dominated by the historic route of the Bozeman Trail. Researchers can trace the ranching life of the era through sites like the Taylor Sch, the U T Ranch, and the Tom R Carr Scout Camp.2 unique versions available - 1955 Map of Sheridan, 1973 Print
1955 Sheridan1973 Print · USGSThe Bighorn Mountains meet the Powder River Basin in the 1950s, a period when cattle ranching and coal mining defined the regional economy. Genealogists and historians can trace local landmarks like the Fort Mackenzie Veteran Hospital, the Monarch Coal Mine, and legacy operations such as the Beckton Stock Farm.2 unique versions available - 1955 Map of Arminto, 1976 Print
1955 Arminto1976 Print · USGSCentral Wyoming at the mid-century shows a landscape of energy reserves and high-plains ranching. Genealogists and historians can trace the Burlington Northern line through Lost Cabin and the famed Teapot Dome Naval Petroleum Reserve No 3.2 unique versions available - 1958 Map of Sheridan
1958 Sheridan1958 Print · USGSThe Bighorn Mountains meet the high plains in the mid-1950s, revealing a landscape of large-scale ranching and mineral extraction. Trace the legacy of early settlements and industry through the Kleenburn Coal Tipple, Beckton Stock Farm, and the Hidden Dome Oil & Gas Field.2 unique versions available - 1958 Map of Arminto
1958 Arminto1958 Print · USGSCentral Wyoming in the late fifties was a landscape of high-plains energy and remote rail outposts. Researchers can trace the Chicago Burlington and Quincy railroad through towns like Arminto and Waltman or locate landmarks like Teapot Rock. - 1959 Map of Edgerton, 1962 Print
1959 Edgerton1962 Print · USGSHigh plains oil production and ranching define this Wyoming landscape during the late fifties. Researchers can trace the boundaries of the Teapot Dome Naval Petroleum Reserve No 3 and locate sites like Parsons Ranch and the Sawmill near Pine Ridge. - 1960 Map of Shell Lake, 1962 Print
1960 Shell Lake1962 Print · USGSBighorn National Forest in the early sixties remained a backcountry expanse accessible primarily by pack trails and mountain passes. Trace the old routes through Dutch Oven Pass and locate remote landmarks like the Lake Geneva Campground and Teepee Pole Flats.4 unique versions available - 1961 Map of Barnum, 1962 Print
1961 Barnum1962 Print · USGSThe ranchlands of Johnson County come to life in this early 1960s survey of the iconic Powder River country. Genealogists and historians can trace the foundations of local legacy through sites like the Roy Rinker Homestead, Grave Ranch, and the legendary Outlaw Cave.2 unique versions available - 1961 Map of Soldier Creek, 1964 Print
1961 Soldier Creek1964 Print · USGSJohnson County is shown during the early sixties, where the historic Bozeman Trail traverses a landscape of deep draws and river bends. Local historians can trace the bounds of the Fort Reno Military Reservation and locate old water sources like Palmer Reservoir and Reno Reservoir. - 1961 Map of Kaycee NE, 1964 Print
1961 Kaycee NE1964 Print · USGSJohnson County's ranching and mining heartland is captured here in the early sixties, centered on the Middle Fork Powder River valley. Genealogists and local historians can locate several family operations like Smith Ranch and trace numerous historic mines including the Bybee Mines and Running Mine.3 unique versions available - 1961 Map of Fourmile Reservoir, 1964 Print
1961 Fourmile Reservoir1964 Print · USGSRangeland and water management in Johnson County are captured here in the early sixties. Researchers can trace historic water rights and land use through the Fourmile Reservoir, a lone Cem, and the winding Buffalo Sussex Cutoff. - 1961 Map of Figure 8 Reservoir, 1964 Print
1961 Figure 8 Reservoir1964 Print · USGSRanching and oil extraction define the Wyoming landscape along the Powder River during the early sixties. Genealogists and historians can trace family operations like the Streeter Ranch and Koch Ranch or locate the Pioneer Monument and Sutton Sch 1.2 unique versions available
Showing maps 1-25 of 141
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