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Old Maps of Lyons, Colorado for Metal Detecting

Plan your next treasure hunt with 25 historic maps of Lyons. 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 Lyons.

Lyons, CO maps

(25)
  1. 1902 Map of Boulder, 1957 Print
    1902 Map of Boulder, 1957 Print
    1902 Boulder
    1957 Print · USGS
    The Front Range foothills hum with mining and rail activity at the turn of the century. Genealogy researchers can trace families in old mining camps like Gold Hill, Wallstreet, and Sunshine, or follow the winding Colorado and Northwestern RR.
  4. 1904 Map of Niwot
    1904 Map of Niwot
    1904 Niwot
    1904 Print · USGS
    The northern Colorado plains come alive in the early 1900s, showcasing a landscape shaped by coal mining and extensive irrigation. Genealogists and historians can trace family roots through settlements like Hygiene, Niwot, and Erie, or locate industrial sites such as Dixon Mill and the Gladstone Mine.
    3 unique versions available
  7. 1904 Map of Boulder
    1904 Map of Boulder
    1904 Boulder
    1904 Print · USGS
    The Front Range foothills hum with mining activity at the start of the twentieth century, as narrow-gauge rails climb the canyons. Genealogists and historians can trace defunct rail stops and mining camps like Salina, Wallstreet, and Gold Hill Sta..
    6 unique versions available
  10. 1950 Map of Hygiene, 1952 Print
    1950 Map of Hygiene, 1952 Print
    1950 Hygiene
    1952 Print · USGS
    The Boulder County plains meet the foothills in the mid-twentieth century, revealing a landscape shaped by intricate irrigation and early ranching. Genealogists can trace family footprints at the Ryssby Ch, the settlement of Altona, and several rural schoolhouses like Montgomery School.
    5 unique versions available
  13. 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
  16. 1957 Map of Greeley
    1957 Map of Greeley
    1957 Greeley
    1957 Print · USGS
    Northern Colorado in the mid-fifties is captured here as the agricultural plains of Weld County meet the high peaks of the Front Range. Genealogists and historians can trace rail-linked towns like Keenesburg and Roggen or locate early water features such as Boyd Lake and Fossil Creek Reservoir.
  19. 1957 Map of Lyons, 1959 Print
    1957 Map of Lyons, 1959 Print
    1957 Lyons
    1959 Print · USGS
    Lyons and the surrounding Boulder County foothills are documented here in the late fifties as a center for stone quarrying and irrigation. Researchers can trace historic water routes like the Toll Gate Ditch or locate the Altona Grange and local quarries.
    2 unique versions available
  22. 1957 Map of Boulder, 1960 Print
    1957 Map of Boulder, 1960 Print
    1957 Boulder
    1960 Print · USGS
    Boulder and the surrounding mountain canyons are captured in the late fifties, showing a landscape defined by mining history and early settlement. Trace the footprints of old camps like Gold Hill and Wallstreet, or locate the historic Bunce School and Gresham (Site).
    3 unique versions available
  25. 1958 Map of Greeley
    1958 Map of Greeley
    1958 Greeley
    1958 Print · USGS
    Northern Colorado and the high peaks of the Front Range appear here in the mid-fifties as the region's agricultural and rail networks were fully established. Genealogists can locate family homes near Virginia Dale, Waverly, or Kuner, and trace the path of the Union Pacific Railroad through Greeley.
  28. 1961 Map of Greeley
    1961 Map of Greeley
    1961 Greeley
    1961 Print · USGS
    Northern Colorado's transition from high mountain peaks to irrigated plains is captured here just as the post-war population boom reached the Front Range. Researchers can trace early water infrastructure and rail lines like the Great Western RR connecting sugar beet hubs from Fort Collins to Greeley.
  31. 1964 Map of Greeley
    1964 Map of Greeley
    1964 Greeley
    1964 Print · USGS
    The Front Range corridor and high peaks of the Rockies appear here in the mid-1960s, showing the intersection of mountain wilderness and plains agriculture. Trace the rail routes of the Great Western RR or locate landmarks like Longs Peak and Horsetooth Reservoir.
  34. 1965 Map of Greeley
    1965 Map of Greeley
    1965 Greeley
    1965 Print · USGS
    Northern Colorado in the mid-sixties shows a landscape defined by high mountain summits and the growing irrigation networks of the plains. Genealogists and historians can trace rail-side towns like Wellington or follow the early tracks of the Union Pacific Railroad past Longs Peak.
  37. 1968 Map of Hygiene
    1968 Map of Hygiene
    1968 Hygiene
    1968 Print · USGS
    The Boulder Valley in the late sixties reveals a landscape of complex irrigation and emerging aerospace infrastructure. Genealogists and local historians can trace the development of Hygiene and Longmont, alongside landmarks like McIntosh Lake and the Longmont Airport.
    5 unique versions available
  40. 1968 Map of Lyons
    1968 Map of Lyons
    1968 Lyons
    1968 Print · USGS
    Lyons and the eastern edge of the foothills are documented here in the late sixties as the local quarrying industry thrived. Genealogists and researchers can trace family landmarks and industrial sites near Altona, Steamboat Mountain, and the Button Rock Reservoir.
    6 unique versions available
  43. 1984 Map of Estes Park
    1984 Map of Estes Park
    1984 Estes Park
    1984 Print · USGS
    The northern Front Range and high peaks come into focus during the mid-eighties, showing the intersection of mountain wilderness and urban expansion. Trace the rail lines of the Union Pacific, the shores of Lake Granby, and historic mountain towns like Gold Hill or Eldora.
    3 unique versions available
  46. 2010 Map of Hygiene, 2010 Print
    2010 Map of Hygiene, 2010 Print
    2010 Hygiene
    2010 Print · USGS
    Covers Lyons, including Longmont, Hygiene, and other nearby areas
  49. 2011 Map of Lyons, 2011 Print
    2011 Map of Lyons, 2011 Print
    2011 Lyons
    2011 Print · USGS
    Covers Lyons, including Altona, Boulder County, and other nearby areas
  52. 2013 Map of Lyons, 2013 Print
    2013 Map of Lyons, 2013 Print
    2013 Lyons
    2013 Print · USGS
    Covers Lyons, including Altona, Boulder County, and other nearby areas
  55. 2013 Map of Hygiene, 2013 Print
    2013 Map of Hygiene, 2013 Print
    2013 Hygiene
    2013 Print · USGS
    Covers Lyons, including Longmont, Hygiene, and other nearby areas
  58. 2016 Map of Lyons, 2016 Print
    2016 Map of Lyons, 2016 Print
    2016 Lyons
    2016 Print · USGS
    Covers Lyons, including Altona, Boulder County, and other nearby areas
  61. 2016 Map of Hygiene, 2016 Print
    2016 Map of Hygiene, 2016 Print
    2016 Hygiene
    2016 Print · USGS
    Covers Lyons, including Longmont, Hygiene, and other nearby areas
  64. 2019 Map of Lyons, 2019 Print
    2019 Map of Lyons, 2019 Print
    2019 Lyons
    2019 Print · USGS
    Covers Lyons, including Altona, Boulder County, and other nearby areas
  67. 2019 Map of Hygiene, 2019 Print
    2019 Map of Hygiene, 2019 Print
    2019 Hygiene
    2019 Print · USGS
    Covers Lyons, including Longmont, Hygiene, and other nearby areas
  70. 2022 Map of Hygiene, 2022 Print
    2022 Map of Hygiene, 2022 Print
    2022 Hygiene
    2022 Print · USGS
    The area surrounding Hygiene and western Longmont is shown here in the 2020s, revealing a landscape defined by historic irrigation and early Swedish settlement. Researchers can trace local heritage through landmarks like Ryssby Church Cem and the complex network of the Oligarchy Ditch.
  73. 2022 Map of Lyons, 2022 Print
    2022 Map of Lyons, 2022 Print
    2022 Lyons
    2022 Print · USGS
    The foothills of Boulder County come alive in this survey of the Lyons area and the North and South Saint Vrain Creeks. Local historians can trace the irrigation network of the Table Mountain Ditch, find the Lyons Cem, and locate the Golden Age mine site.
End of results
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