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Old Maps of Diagonal, Iowa for Metal Detecting

Plan your next treasure hunt with 10 historic maps of Diagonal. 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 Diagonal.

Diagonal, IA maps

(10)
  1. 1955 Map of Nebraska City, 1967 Print
    1955 Map of Nebraska City, 1967 Print
    1955 Nebraska City
    1967 Print · USGS
    The four-state region surrounding the Missouri River valley appears here in the mid-1950s, a landscape of rail-dependent market towns and rural school districts. Genealogists can locate family landmarks like the Rock Bluff School, St Oswald Church, and the Clarinda State Hospital.
    3 unique versions available
  4. 1957 Map of Nebraska City
    1957 Map of Nebraska City
    1957 Nebraska City
    1957 Print · USGS
    The four-state junction of Nebraska, Iowa, Missouri, and Kansas comes alive in this mid-fifties survey of the Missouri River valley. Genealogists and historians can trace the rail-and-road networks connecting Nebraska City, Maryville, and the Squaw Creek National Wildlife Refuge.
  7. 1958 Map of Nebraska City
    1958 Map of Nebraska City
    1958 Nebraska City
    1958 Print · USGS
    The Missouri River Valley and its fertile four-state borderlands are captured here during the mid-century expansion of the regional highway and rail networks. Genealogists can trace family roots through numerous rural landmarks like Moulton School, Shady Grove Church, and the Clarinda State Hospital.
  10. 1981 Map of Diagonal
    1981 Map of Diagonal
    1981 Diagonal
    1981 Print · USGS
    The rail-and-river landscape of Ringgold County is captured here in the early eighties, centered on the junction at Diagonal. Researchers can trace local heritage through numerous burial grounds like Bohemian Cem and Knowlton Cem or follow the path of the Grand River.
  13. 1985 Map of Mount Ayr
    1985 Map of Mount Ayr
    1985 Mount Ayr
    1985 Print · USGS
    The Iowa-Missouri borderlands are captured here in the mid-eighties, showing a landscape defined by the branching forks of the Platte River and Grand River. Researchers can trace the heritage of rural communities and conservation sites like Lake of Three Fires State Park and Rose Hill Cemetery.
    2 unique versions available
  16. 2010 Map of Diagonal, 2010 Print
    2010 Map of Diagonal, 2010 Print
    2010 Diagonal
    2010 Print · USGS
    Covers Diagonal, including Knowlton, Ringgold County, and other nearby areas
  19. 2013 Map of Diagonal, 2013 Print
    2013 Map of Diagonal, 2013 Print
    2013 Diagonal
    2013 Print · USGS
    Covers Diagonal, including Knowlton, Ringgold County, and other nearby areas
  22. 2015 Map of Diagonal, 2015 Print
    2015 Map of Diagonal, 2015 Print
    2015 Diagonal
    2015 Print · USGS
    Covers Diagonal, including Knowlton, Ringgold County, and other nearby areas
  25. 2018 Map of Diagonal, 2018 Print
    2018 Map of Diagonal, 2018 Print
    2018 Diagonal
    2018 Print · USGS
    Covers Diagonal, including Knowlton, Ringgold County, and other nearby areas
  28. 2023 Map of Diagonal, 2023 Print
    2023 Map of Diagonal, 2023 Print
    2023 Diagonal
    2023 Print · USGS
    Ringgold County’s rural character is preserved in this modern survey of the area surrounding Diagonal and the Grand River valley. Researchers can trace local heritage through several burial grounds, including the curiously named Dead Mans Cut Cem and Bohemian Cem.
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