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Old Maps of Alma, Colorado for Metal Detecting

Plan your next treasure hunt with 19 historic maps of Alma. 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 Alma.

Alma, CO maps

(19)
  1. 1889 Map of Leadville, 1955 Print
    1889 Map of Leadville, 1955 Print
    1889 Leadville
    1955 Print · USGS
    The Colorado high country at the peak of its mining era reveals a landscape of high-altitude rail lines and booming silver camps. Genealogists and historians can trace the early rail routes of the Colorado Midland Railway, find the origins of Leadville, and locate mountain settlements like Alma and Kokomo.
  4. 1891 Map of Leadville
    1891 Map of Leadville
    1891 Leadville
    1891 Print · USGS
    The Silver City and its surrounding mining camps are caught at their industrial height in the 1880s and 90s. Trace the competing rail lines and high-altitude settlements from Holy Cross City to the busy streets of Leadville and London Park City.
    7 unique versions available
  7. 1934 Map of Climax
    1934 Map of Climax
    1934 Climax
    1934 Print · USGS
    The Colorado high country in the mid-1930s reveals a landscape of industrial mining and high-altitude transport. Trace the routes of the Colorado and Southern RR or locate the historic mining district of Quartzville and the London Mine.
  10. 1938 Map of Mt. Lincoln
    1938 Map of Mt. Lincoln
    1938 Mt. Lincoln
    1938 Print · USGS
    Summit and Park counties are captured here in the late 1930s, documenting the high-altitude mining landscape of the Tenmile Range. Researchers can trace the early footprints of Alma, the mining sites at Kokomo and London, and historic routes over Mosquito Pass.
    7 unique versions available
  13. 1942 Map of Leadville, 1943 Print
    1942 Map of Leadville, 1943 Print
    1942 Leadville
    1943 Print · USGS
    High in the Rockies during the early war years, this area served as a critical hub for military training and mining operations. Trace the rail lines of the Denver and Rio Grande Western RR and find local landmarks like the U. S. Fish Hatchery or the Adelaide mine.
  16. 1945 Map of Mount Lincoln
    1945 Map of Mount Lincoln
    1945 Mount Lincoln
    1945 Print · USGS
    Breckenridge and the surrounding mining districts were still active industrial hubs when this survey was updated in the mid-1940s. Researchers can trace historic claims and mineral landmarks such as USLM No 16 and the remote high-altitude site of Climax.
    2 unique versions available
  19. 1957 Map of Leadville, 1978 Print
    1957 Map of Leadville, 1978 Print
    1957 Leadville
    1978 Print · USGS
    High-country mining and rail transport define the central Colorado Rockies during the mid-to-late twentieth century. Researchers can trace the industrial footprints of Gilman and Climax, find small rail stops like Malta, and follow the Denver and Rio Grande Western RR.
    2 unique versions available
  22. 1959 Map of Leadville
    1959 Map of Leadville
    1959 Leadville
    1959 Print · USGS
    The Colorado high country in the late fifties is a landscape of mining history and military training, from the streets of Leadville to the Camp Hale grounds. Genealogists and historians can trace the Denver and Rio Grande Western RR alongside now-deserted sites like Ashcroft and Independence.
  25. 1960 Map of Leadville
    1960 Map of Leadville
    1960 Leadville
    1960 Print · USGS
    The Colorado high country in the mid-fifties comes alive through its mining camps, river valleys, and rail lines. Trace the industrial legacy of the Climax Molybdenum Mine and explore the alpine reaches of the Camp Hale Military Reservation.
    2 unique versions available
  28. 1962 Map of Leadville
    1962 Map of Leadville
    1962 Leadville
    1962 Print · USGS
    The Colorado high country in the early sixties was a rugged landscape of mining camps, military training grounds, and emerging ski towns. Researchers can trace the legacy of Camp Hale, locate the Molybdenum mine near Leadville, and follow the Denver and Rio Grande Western RR through the canyons.
  31. 1964 Map of Leadville
    1964 Map of Leadville
    1964 Leadville
    1964 Print · USGS
    Colorado's high country is captured here during the mid-1960s, showing the intersection of mining history and mountain transport. Trace the legacy of high-altitude industry at the Climax Molybdenum Mine or follow the rails of the Colorado and Southern Ry past Leadville.
  34. 1970 Map of Alma, 1973 Print
    1970 Map of Alma, 1973 Print
    1970 Alma
    1973 Print · USGS
    The Colorado high country around Alma was a hub of hard-rock mining and alpine engineering in the early 1970s. Trace the legacy of the silver and gold era through the Sweet Home Mine, the ruins at Quartzville, and the remote Buckskin Cemetery.
    4 unique versions available
  37. 1983 Map of Leadville
    1983 Map of Leadville
    1983 Leadville
    1983 Print · USGS
    The Colorado high country in the early eighties shows a landscape of world-class peaks and deep-rooted mining industry. Trace the historic tracks of the Denver and Rio Grande Western RR and locate high-altitude operations like the Climax Mine or London Mine.
    2 unique versions available
  40. 1994 Map of Alma, 1998 Print
    1994 Map of Alma, 1998 Print
    1994 Alma
    1998 Print · USGS
    The high peaks of the Tenmile and Mosquito Ranges come alive in the mid-1990s as this map traces the deep mining history of the South Platte headwaters. Researchers can locate active and former operations like the Sweet Home Mine and Magnolia Mill, or find family names at the Park City Cem.
  43. 2011 Map of Alma, 2011 Print
    2011 Map of Alma, 2011 Print
    2011 Alma
    2011 Print · USGS
    Covers Alma, including Summit County, Park County, and other nearby areas
  46. 2013 Map of Alma, 2013 Print
    2013 Map of Alma, 2013 Print
    2013 Alma
    2013 Print · USGS
    Covers Alma, including Summit County, Park County, and other nearby areas
  49. 2016 Map of Alma, 2016 Print
    2016 Map of Alma, 2016 Print
    2016 Alma
    2016 Print · USGS
    Covers Alma, including Summit County, Park County, and other nearby areas
  52. 2019 Map of Alma, 2019 Print
    2019 Map of Alma, 2019 Print
    2019 Alma
    2019 Print · USGS
    Covers Alma, including Summit County, Park County, and other nearby areas
  55. 2022 Map of Alma, 2022 Print
    2022 Map of Alma, 2022 Print
    2022 Alma
    2022 Print · USGS
    The high alpine mining landscape around Alma is shown here in the modern era, where steep gulches meet historic water systems. Researchers can find old burial grounds like Buckskin Cem and trace the paths of the Dyer Placer Ditch and Fairplay Mining Ditch.
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