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1900s (20th Century) Maps of Lassen County, California

Explore 246 historic maps of Lassen 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 Lassen 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 Lassen County's history through authentic maps from the 1900s. This is your window into the past.

Lassen County, CA maps

(246)
  1. 1939 Map of Halls Flat
    1939 Map of Halls Flat
    1939 Halls Flat
    1939 Print · USGS
    The high plateau of eastern Shasta and Lassen counties is shown here in the late 1930s, defined by timber management and remote ranching. Researchers can trace early forest outposts like Halls Flat Ranger Sta, family holdings at DeLashmutt Ranch, and the Western Pacific rail line.
    3 unique versions available
  4. 1950 Map of Chilcoot, 1952 Print
    1950 Map of Chilcoot, 1952 Print
    1950 Chilcoot
    1952 Print · USGS
    The high Sierra gateway at Beckwourth Pass is documented here at mid-century as the railroad and highway networks expanded. Researchers can trace the routes of the Western Pacific and locate local landmarks like Summit Sch and Hallelujah Junction.
    5 unique versions available
  7. 1950 Map of Kettle Rock, 1952 Print
    1950 Map of Kettle Rock, 1952 Print
    1950 Kettle Rock
    1952 Print · USGS
    The Plumas National Forest and Diamond Mountains are captured here at the start of the 1950s during a peak era for timber and mining. Researchers can trace the Logging Railroad to Clover Valley Lumber Camp No 14 or locate the remote Engel Mine Upper Camp and Beardsley Mine.
    3 unique versions available
  10. 1950 Map of Greenville, 1952 Print
    1950 Map of Greenville, 1952 Print
    1950 Greenville
    1952 Print · USGS
    Plumas County at the mid-century shows a landscape shaped by the Western Pacific RR and deep-vein mining operations. Local researchers can trace the footings of the Engel Mine, the Indian Mission, and historical settlements like Crescent Mills and Taylorsville.
    4 unique versions available
  13. 1950 Map of Milford, 1952 Print
    1950 Map of Milford, 1952 Print
    1950 Milford
    1952 Print · USGS
    The high desert basin meets the timbered peaks of the Sierras in the early fifties. Genealogists and historians can trace family-named sites like Clark Ranch, the early operations of the Honey Lake Mine, and the mid-century boundaries of the Dixie Mountain State Game Refuge.
    3 unique versions available
  16. 1954 Map of Susanville
    1954 Map of Susanville
    1954 Susanville
    1954 Print · USGS
    Mid-century Susanville and the surrounding Honey Lake Valley are captured here during a period of steady growth and rail reliance. Researchers can trace family ties at the Lassen Cem, locate Peter Lassens Grave, and see the early layout of the Susanville Indian Rancheria.
    3 unique versions available
  19. 1954 Map of Wendel, 1955 Print
    1954 Map of Wendel, 1955 Print
    1954 Wendel
    1955 Print · USGS
    Lassen County's high desert and military installations come into focus in the mid-1950s. Genealogists and historians can trace the Southern Pacific Railroad through Wendel, locate the Cemetery near Amedee, and find the Pearson Massacre (Site).
    2 unique versions available
  22. 1954 Map of Observation Peak, 1955 Print
    1954 Map of Observation Peak, 1955 Print
    1954 Observation Peak
    1955 Print · USGS
    Lassen County ranching and high-desert water management are captured here in the mid-1950s before modern development. Genealogists and historians can trace family-named sites like Horne Ranch, the local Cemetery, and remote outposts such as Rager Res.
    3 unique versions available
  25. 1954 Map of Litchfield, 1955 Print
    1954 Map of Litchfield, 1955 Print
    1954 Litchfield
    1955 Print · USGS
    Lassen County's high desert landscape comes alive in the mid-fifties, showing the intersection of ranching and rail as the Southern Pacific spans the valley. Researchers can find old community hubs like Standish and Litchfield, alongside the remote Wendel Hot Springs and Lake School.
    3 unique versions available
  28. 1954 Map of Karlo, 1955 Print
    1954 Map of Karlo, 1955 Print
    1954 Karlo
    1955 Print · USGS
    Lassen County ranching and rail life are preserved here in the mid-1950s. Genealogists and local historians can trace the Southern Pacific tracks through Karlo or locate family-named landmarks like Snowstorm Ranch and Tunison Mtn.
    2 unique versions available
  31. 1954 Map of Grasshopper Valley, 1955 Print
    1954 Map of Grasshopper Valley, 1955 Print
    1954 Grasshopper Valley
    1955 Print · USGS
    Lassen County ranching and rail infrastructure are captured here in the mid-1950s. Genealogists and local historians can locate the Dry Valley Cemetery, trace the SOUTHERN PACIFIC line, or identify family-named sites like McCoy Flat and Monroe Corrals.
    3 unique versions available
  34. 1954 Map of Doyle, 1956 Print
    1954 Map of Doyle, 1956 Print
    1954 Doyle
    1956 Print · USGS
    Lassen County's high-desert landscape and military infrastructure are detailed here in the mid-fifties. Genealogists and historians can trace the development of Herlong and the Sierra Ordnance Depot alongside rural landmarks like Bird Flat Sch and the Honey Lake Cemetery.
    3 unique versions available
  37. 1954 Map of Ravendale, 1956 Print
    1954 Map of Ravendale, 1956 Print
    1954 Ravendale
    1956 Print · USGS
    High desert life in Lassen County comes into focus in the mid-1950s, centered on the railroad stops and working ranches of the Made Line Plains. Trace family history at Ravendale and Termo, or locate early sites like the Butte Sch and the Brockmans Horse Camp.
    3 unique versions available
  40. 1954 Map of Fredonyer Peak, 1956 Print
    1954 Map of Fredonyer Peak, 1956 Print
    1954 Fredonyer Peak
    1956 Print · USGS
    Lassen County ranching and water rights take center stage in the mid-1950s as the High Sierra landscape transitions toward the high desert. Genealogists and local historians can locate early family holdings like Five Dot Ranch, Stone Ranch, and the lakeside settlement of Stones.
    3 unique versions available
  43. 1954 Map of Shinn Mountain, 1956 Print
    1954 Map of Shinn Mountain, 1956 Print
    1954 Shinn Mountain
    1956 Print · USGS
    Lassen County ranching and the high desert borderlands are frozen in time during the mid-fifties. Genealogists and historians can trace remote outposts like Shinn Ranch and Post Camp or locate forgotten water sources like McKissick Spring.
    2 unique versions available
  46. 1954 Map of Vya, 1967 Print
    1954 Map of Vya, 1967 Print
    1954 Vya
    1967 Print · USGS
    The tri-state corner of Nevada, Oregon, and California appears here in the mid-fifties, dominated by wildlife refuges and massive naval gunnery ranges. Trace isolated high-desert outposts like Vya and Soldier Meadow Ranch or find historic workings at the Ashdown Mine.
    3 unique versions available
  49. 1954 Map of Alturas, 1968 Print
    1954 Map of Alturas, 1968 Print
    1954 Alturas
    1968 Print · USGS
    The Modoc Plateau and Surprise Valley appear in the mid-1950s as a landscape of remote ranching towns and vast wildlife refuges. Researchers can trace early settlements like Fort Bidwell, locate the McArthur Grain Elevator, and follow the Southern Pacific rail lines.
    4 unique versions available
  52. 1955 Map of Loyalton, 1957 Print
    1955 Map of Loyalton, 1957 Print
    1955 Loyalton
    1957 Print · USGS
    The Sierra Valley and the high timberlands of the California-Nevada border come alive in the mid-fifties. Genealogists can trace the Loyalton Cem and isolated outposts like Balls Ranch or the Flying Dutchman Mine.
    4 unique versions available
  55. 1955 Map of Westwood, 1957 Print
    1955 Map of Westwood, 1957 Print
    1955 Westwood
    1957 Print · USGS
    The timber and ranching culture of the Lassen highlands is captured here during the mid-fifties. Genealogists and historians can trace family properties like Worley Ranch and Stephens Ranch or follow the rails to Westwood Junction.
    3 unique versions available
  58. 1955 Map of Almanor, 1957 Print
    1955 Map of Almanor, 1957 Print
    1955 Almanor
    1957 Print · USGS
    The high Sierra Nevada landscape is shaped by the massive reservoirs and mountain rail lines of the mid-fifties. Researchers can trace the Western Pacific route through the river canyons or locate mining history at the Dutch Hill Mine and Sunnyside Mine.
    4 unique versions available
  61. 1955 Map of Westwood, 1959 Print
    1955 Map of Westwood, 1959 Print
    1955 Westwood
    1959 Print · USGS
    In the mid-fifties, the northeastern California interior supported a landscape of mountain timber and high-desert basins. Genealogists and historians can locate early settlements and industrial sites like Susanville, Herlong, and the Sierra Ordinance Depot.
  64. 1955 Map of Lovelock, 1963 Print
    1955 Map of Lovelock, 1963 Print
    1955 Lovelock
    1963 Print · USGS
    Northwestern Nevada’s vast desert basins and military ranges are captured here in the mid-fifties, showing a landscape defined by the Humboldt River and the great Pyramid Lake. Genealogists and historians can trace isolated rail stops like Gerlach and Empire, or locate historic workings such as the Golden Eagle Mine and Pershing Mine.
    5 unique versions available
  67. 1956 Map of Hayden Hill, 1957 Print
    1956 Map of Hayden Hill, 1957 Print
    1956 Hayden Hill
    1957 Print · USGS
    The high country of Lassen and Modoc counties comes into focus in the mid-1950s, revealing a landscape of high-altitude camps and essential waterholes. Researchers can trace the layout of Hayden Hill, locate the local Cem, or identify ranching landmarks like Totten Camp and Silva Flat Reservoir.
    3 unique versions available
  70. 1956 Map of Mt. Harkness, 1958 Print
    1956 Map of Mt. Harkness, 1958 Print
    1956 Mt. Harkness
    1958 Print · USGS
    The high Cascades of Plumas and Tehama counties appear here during the mid-fifties, centered on the geothermal wonders of the national park. Genealogists and historians can locate remote outposts like Drakesbad, St Bernard, and the Smith Cabin among the peaks.
    4 unique versions available
  73. 1956 Map of Chester, 1958 Print
    1956 Map of Chester, 1958 Print
    1956 Chester
    1958 Print · USGS
    Mid-century Plumas County shows a landscape defined by the timber industry and the growing recreation of the Sierra Nevada. Trace the legacy of Westwood and Chester along the shores of Lake Almanor, or locate old rail grades like the Pacific Western Railroad.
    4 unique versions available
Showing maps 1-25 of 246

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