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Old Maps of Grand County, Colorado for Genealogy

Trace your family roots with 355 historic maps of Grand County. These high-res maps reveal old neighborhoods, homesites, landmarks, and streets — helping you uncover where your ancestors lived and how the area evolved over time.

  • Explore historic neighborhoods: Identify where your relatives may have lived in the 1800s or 1900s.
  • Compare maps over time: Trace the changes in streets, buildings, and landmarks for multi-generational research.
  • Perfect for genealogy & ancestry research: Used by family historians and researchers to map out lineage and migration.

These maps are an incredible resource for exploring your personal connection to Grand County's past.

Grand County, CO maps

(355)
  1. 1905 Map of Central City
    1905 Map of Central City
    1905 Central City
    1905 Print · USGS
    The Colorado Front Range is captured here at the peak of its early mining era, showing the dense network of gulches and camps. Trace historic mining operations at Central City, follow the high-mountain route of the Denver Northwestern and Pacific RR, or locate vanished settlements like Baltimore and Perigo.
  4. 1910 Map of Central City, 1957 Print
    1910 Map of Central City, 1957 Print
    1910 Central City
    1957 Print · USGS
    The Colorado high country at the start of the century reveals a landscape defined by mining booms and engineering marvels. Trace the intricate rail networks of the Colorado Southern RR or locate family roots in the historic camps of Nevadaville and Central City.
    2 unique versions available
  7. 1912 Map of Central City
    1912 Map of Central City
    1912 Central City
    1912 Print · USGS
    The Colorado Front Range mining districts were in full operation during this era of deep-shaft extraction and mountain railroading. Researchers can trace the industrial footprint of Central City, locate the Boulder County Mine, and follow the path of the Colorado and Southern RR through the gulches.
    4 unique versions available
  10. 1915 Map of Longs Peak
    1915 Map of Longs Peak
    1915 Longs Peak
    1915 Print · USGS
    High mountain passes and early alpine settlements define this region just as the National Park system was taking root. Genealogists and hikers can trace the Ute Trail, locate the Sleepy Hollow School, or find the old Monarch PO near Grand Lake.
    3 unique versions available
  13. 1919 Map of Rocky Mountain National Park
    1919 Map of Rocky Mountain National Park
    1919 Rocky Mountain National Park
    1919 Print · USGS
    The high alpine basins of Northern Colorado are captured here in the years following the park's creation. Researchers can locate early schools and post offices like Sleepy Hollow School and Monarch PO, or trace the rail lines of the Denver and Salt Lake RR.
    7 unique versions available
  16. 1924 Map of Montezuma
    1924 Map of Montezuma
    1924 Montezuma
    1924 Print · USGS
    High Colorado peaks and mining camps define the landscape during the 1920s and 1930s. Genealogists and historians can trace the foundations of Montezuma and Keystone, and locate historic operations like the Hamill Mine and Waldorf Mine.
    2 unique versions available
  19. 1924 Map of Fraser, 1957 Print
    1924 Map of Fraser, 1957 Print
    1924 Fraser
    1957 Print · USGS
    Grand County's high-country rail and ranching corridors come alive in this mid-twenties survey of the Fraser Valley. Researchers can trace the original Denver and Salt Lake RR route, locate the Pole Creek School, and study the early layout of West Portal near the Moffat Tunnel.
    2 unique versions available
  22. 1926 Map of Fraser
    1926 Map of Fraser
    1926 Fraser
    1926 Print · USGS
    The high Rockies come alive in the mid-twenties as the Moffat Tunnel and Denver and Salt Lake Railroad reshape the landscape. Researchers can trace early infrastructure like the Lumber Flume and the isolated Pole Creek School.
    4 unique versions available
  25. 1926 Map of Montezuma
    1926 Map of Montezuma
    1926 Montezuma
    1926 Print · USGS
    The Continental Divide during the 1920s reveals a high-country landscape defined by its mining heritage and high mountain passes. Researchers can trace the rugged operations at the Waldorf Mine and Stevens Mine or locate the early mountain settlements of Montezuma and Swandyke.
    3 unique versions available
  28. 1929 Map of Dillon, 1955 Print
    1929 Map of Dillon, 1955 Print
    1929 Dillon
    1955 Print · USGS
    In the late 1920s, the Blue River valley was a high-country network of rail stops and mining camps before the landscape was changed by major dam projects. Genealogists and historians can trace the early footprints of Dillon, Frisco, and the Colorado and Southern railroad line.
    2 unique versions available
  31. 1933 Map of Mt. Powell
    1933 Map of Mt. Powell
    1933 Mt. Powell
    1933 Print · USGS
    The Colorado high country in the early thirties reveals a landscape of isolated mountain homesteads and remote federal forest lands. Genealogists and local historians can trace family locations like the Noonen Ranch or locate early rural schools including Upper Sheephorn Sch and Lakeside Sch.
    5 unique versions available
  34. 1933 Map of Montezuma, 1956 Print
    1933 Map of Montezuma, 1956 Print
    1933 Montezuma
    1956 Print · USGS
    The mining districts of the high Rockies are caught in a period of transition in the 1930s. Researchers can locate remote industrial sites like the Waldorf Mine and follow early mountain routes over Loveland Pass and Argentine Pass.
    3 unique versions available
  37. 1933 Map of Ute Peak, 1959 Print
    1933 Map of Ute Peak, 1959 Print
    1933 Ute Peak
    1959 Print · USGS
    The high mountain country of Grand and Summit Counties is captured here in the early 1930s before modern development altered these drainages. Genealogists and historians can trace the locations of the Ute Park School and Hermosa School or find the remote Leal post office and Horseshoe Ranger Station.
    3 unique versions available
  40. 1934 Map of Dillon
    1934 Map of Dillon
    1934 Dillon
    1934 Print · USGS
    Dillon and the surrounding Blue River Valley are shown here in the mid-1930s before the valley was flooded for reservoir construction. Genealogists and historians can trace the original locations of Dillon, the Dickey Ranger Sta, and mining sites like the Boss Mine.
    3 unique versions available
  43. 1937 Map of Ute Peak
    1937 Map of Ute Peak
    1937 Ute Peak
    1937 Print · USGS
    Grand and Summit counties are captured here in the 1930s, when remote ranger stations and schoolhouses anchored the high timber. Trace the early road and trail networks connecting Ute Park, Leal, and the Slate Creek Ranger Sta.
    3 unique versions available
  46. 1940 Map of Mount Powell
    1940 Map of Mount Powell
    1940 Mount Powell
    1940 Print · USGS
    The high peaks of the Gore Range and the Blue River valley are shown here during the late 1930s. Researchers can locate remote homesteads and schools such as Abbet Place, Smith Ranch, and the Hillcrest Sch among the alpine lakes.
    3 unique versions available
  49. 1953 Map of Denver, 1964 Print
    1953 Map of Denver, 1964 Print
    1953 Denver
    1964 Print · USGS
    Denver and the Colorado Front Range are captured here during a decade of post-war growth and military expansion. Researchers can trace the sprawling rail lines of the Union Pacific, locate the State Capitol, and explore historic mountain mining hubs like Central City.
    6 unique versions available
  52. 1954 Map of Greeley, 1966 Print
    1954 Map of Greeley, 1966 Print
    1954 Greeley
    1966 Print · USGS
    Northern Colorado transitions from high-alpine peaks to the irrigated South Platte valley during this mid-century period of growth. Genealogists and historians can trace rail-connected hubs like Greeley and Longmont alongside landmarks like Horsetooth Reservoir and Estes Park.
    3 unique versions available
  55. 1954 Map of Craig, 1973 Print
    1954 Map of Craig, 1973 Print
    1954 Craig
    1973 Print · USGS
    Northwest Colorado and the high mountain parks are captured in the mid-fifties, showing the region's ranching, mining, and timber centers. Genealogists and historians can trace rail corridors like the Denver and Rio Grande Western and old towns such as Axial, Milner, and Coalmont.
    3 unique versions available
  58. 1956 Map of Radial Mountain, 1957 Print
    1956 Map of Radial Mountain, 1957 Print
    1956 Radial Mountain
    1957 Print · USGS
    The high Colorado Rockies meet at the Continental Divide in the mid-1950s, where national forest boundaries intersect at the Jackson and Grand county lines. Researchers can trace historic alpine infrastructure like the Gilsonite Guard Station, Willow Creek Pass, and a Road Camp.
    4 unique versions available
  61. 1956 Map of Rabbit Ears Peak, 1958 Print
    1956 Map of Rabbit Ears Peak, 1958 Print
    1956 Rabbit Ears Peak
    1958 Print · USGS
    The Continental Divide serves as the backbone for this mid-century survey of the high country along the Jackson and Grand county line. Researchers can trace early ranching and industry through the McGowan Homestead, a Lumber Camp, and the strategic crossing at Rabbit Ears Pass.
    4 unique versions available
  64. 1956 Map of Lake Agnes, 1958 Print
    1956 Map of Lake Agnes, 1958 Print
    1956 Lake Agnes
    1958 Print · USGS
    The high country of the Rabbit Ears Range comes into focus during the mid-fifties, capturing a landscape of alpine ranching and timber work. You can locate family-named sites like Andersons Ranch, the Strole Sawmill, and the remote Rabbit Ears Lodge.
    6 unique versions available
  67. 1956 Map of Kremmling, 1958 Print
    1956 Map of Kremmling, 1958 Print
    1956 Kremmling
    1958 Print · USGS
    Mid-century Colorado ranching and river geography converge at the confluence of the Colorado River and Blue River. Genealogists and local historians can trace family-named sites like Taussig Ranch and Ingram Ranch or locate the old Colorow Sch.
    3 unique versions available
  70. 1956 Map of Spicer Peak, 1958 Print
    1956 Map of Spicer Peak, 1958 Print
    1956 Spicer Peak
    1958 Print · USGS
    Jackson County ranching and water management are captured here in the mid-fifties, showing the high-country network of the Continental Divide. Genealogists and historians can trace family properties like Van Valkenburg Ranch and Chas Murphy Ranch alongside the extensive Arapaho Ditch system.
    5 unique versions available
  73. 1956 Map of Parkview Mountain, 1958 Print
    1956 Map of Parkview Mountain, 1958 Print
    1956 Parkview Mountain
    1958 Print · USGS
    The Continental Divide winds through the Rabbit Ears Range in the mid-1950s, where high-altitude ranching meets National Forest wilderness. Trace early backcountry routes like the Arapaho Creek Trail or locate the Trails End Ranch and its nearby Beaver Ponds.
    5 unique versions available
Showing maps 1-25 of 355

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