Old Maps of Altona, Colorado for Metal Detecting
Plan your next treasure hunt with 17 historic maps of Altona. 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 Altona.
Altona, CO maps
(17)- 1902 Map of Boulder, 1957 Print
1902 Boulder1957 Print · USGSThe 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. - 1904 Map of Boulder
1904 Boulder1904 Print · USGSThe 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 - 1954 Map of Greeley, 1966 Print
1954 Greeley1966 Print · USGSNorthern 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 - 1957 Map of Greeley
1957 Greeley1957 Print · USGSNorthern 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. - 1957 Map of Lyons, 1959 Print
1957 Lyons1959 Print · USGSLyons 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 - 1957 Map of Boulder, 1960 Print
1957 Boulder1960 Print · USGSBoulder 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 - 1958 Map of Greeley
1958 Greeley1958 Print · USGSNorthern 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. - 1961 Map of Greeley
1961 Greeley1961 Print · USGSNorthern 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. - 1964 Map of Greeley
1964 Greeley1964 Print · USGSThe 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. - 1965 Map of Greeley
1965 Greeley1965 Print · USGSNorthern 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. - 1968 Map of Lyons
1968 Lyons1968 Print · USGSLyons 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 - 1984 Map of Estes Park
1984 Estes Park1984 Print · USGSThe 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 - 2011 Map of Lyons, 2011 Print
2011 Lyons2011 Print · USGSCovers Altona, including Lyons, Boulder County, and other nearby areas - 2013 Map of Lyons, 2013 Print
2013 Lyons2013 Print · USGSCovers Altona, including Lyons, Boulder County, and other nearby areas - 2016 Map of Lyons, 2016 Print
2016 Lyons2016 Print · USGSCovers Altona, including Lyons, Boulder County, and other nearby areas - 2019 Map of Lyons, 2019 Print
2019 Lyons2019 Print · USGSCovers Altona, including Lyons, Boulder County, and other nearby areas - 2022 Map of Lyons, 2022 Print
2022 Lyons2022 Print · USGSThe 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.
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