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Old Maps of Onawa, Iowa for Metal Detecting

Plan your next treasure hunt with 26 historic maps of Onawa. 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 Onawa.

Onawa, IA maps

(26)
  1. 1955 Map of Sioux City, 1959 Print
    1955 Map of Sioux City, 1959 Print
    1955 Sioux City
    1959 Print · USGS
    The Missouri River valley in the mid-fifties is captured here during a time of major engineering and social transition. Genealogists and historians can trace the foundations of Gavins Point Dam, tribal boundaries on the Santee Sioux Indian Reservation, and local landmarks like the Norfolk State Hospital.
    4 unique versions available
  4. 1955 Map of Fremont, 1966 Print
    1955 Map of Fremont, 1966 Print
    1955 Fremont
    1966 Print · USGS
    Eastern Nebraska and the Missouri River border are captured during the mid-fifties, just as the interstate system began to emerge. Researchers can trace the development of Omaha, locate the sprawling Offutt Air Force Base, or study the river-bound ecology of the De Soto National Wildlife Refuge.
    3 unique versions available
  7. 1957 Map of Fremont
    1957 Map of Fremont
    1957 Fremont
    1957 Print · USGS
    Eastern Nebraska and western Iowa thrive along the Platte and Missouri rivers during the mid-fifties. Genealogists can locate small rural schools like Fairview School and tracing the paths of the Union Pacific through towns like Albion and Humphrey.
  10. 1958 Map of Sioux City
    1958 Map of Sioux City
    1958 Sioux City
    1958 Print · USGS
    The Missouri River valley in the late fifties was a bustling intersection of tribal lands, rail corridors, and river towns. Genealogists can trace family roots through specific rural sites like Daisy Valley School, St Johns Church and School, and Yankton State Hospital.
  13. 1958 Map of Fremont
    1958 Map of Fremont
    1958 Fremont
    1958 Print · USGS
    Eastern Nebraska in the late fifties is captured here as a thriving corridor of river-valley commerce and rail transport. Researchers can trace the development of Omaha and Fremont or locate local landmarks like Midland College and Offutt Air Force Base.
  16. 1959 Map of Sioux City
    1959 Map of Sioux City
    1959 Sioux City
    1959 Print · USGS
    The tri-state region surrounding the Missouri River is captured here in the late fifties, showing the convergence of Nebraska, South Dakota, and Iowa. Researchers can trace rural lineages through numerous country schoolhouses like Cemetery School and the many numbered Washington School districts.
  19. 1969 Map of Onawa, 1971 Print
    1969 Map of Onawa, 1971 Print
    1969 Onawa
    1971 Print · USGS
    Onawa and the surrounding Monona County flatlands are shown in the late sixties as a landscape defined by industrial-scale drainage and rail transit. Genealogists and local historians can trace the town's footprint from the West Monona Sch to the Cemetery and the small siding at Kennebec.
  22. 1969 Map of Onawa SW, 1971 Print
    1969 Map of Onawa SW, 1971 Print
    1969 Onawa SW
    1971 Print · USGS
    The Missouri River bottoms at the close of the 1960s reveal a landscape of managed wetlands and vital river crossings. Researchers can trace the Chicago and North Western rail line near Whiting or locate Harrison Cem and Nebowa Camp.
  25. 1970 Map of Blencoe, 1972 Print
    1970 Map of Blencoe, 1972 Print
    1970 Blencoe
    1972 Print · USGS
    Monona County agriculture was at its peak in the early seventies, defined by a massive network of irrigation and drainage canals. Trace the paths of the Chicago and North Western rail line and local landmarks like Graceland Cem and Creswell Landing Strip.
  28. 1986 Map of Sioux City South
    1986 Map of Sioux City South
    1986 Sioux City South
    1986 Print · USGS
    The tri-state borderlands of Iowa, Nebraska, and South Dakota come into focus in the mid-1980s as a landscape of tribal lands and rail corridors. Researchers can trace the extensive boundaries of the Winnebago Indian Reservation and find local landmarks like Morningside College and Martin Field.
    2 unique versions available
  31. 1986 Map of Blair
    1986 Map of Blair
    1986 Blair
    1986 Print · USGS
    Eastern Nebraska and the Iowa borderlands are captured here in the mid-eighties, showing the established river-and-rail network. Genealogists and historians can trace the foundations of Blair, West Point, and Tekamah, or locate smaller sites like Fontanelle and Scribner.
    2 unique versions available
  34. 2010 Map of Onawa, 2010 Print
    2010 Map of Onawa, 2010 Print
    2010 Onawa
    2010 Print · USGS
    Covers Onawa, including Kennebec, Monona County, and other nearby areas
  37. 2010 Map of Blencoe, 2010 Print
    2010 Map of Blencoe, 2010 Print
    2010 Blencoe
    2010 Print · USGS
    Covers Onawa, including Blencoe, Monona County, and other nearby areas
  40. 2010 Map of Onawa SW, 2010 Print
    2010 Map of Onawa SW, 2010 Print
    2010 Onawa SW
    2010 Print · USGS
    Covers Onawa, including Whiting, Decatur, and other nearby areas
  43. 2013 Map of Blencoe, 2013 Print
    2013 Map of Blencoe, 2013 Print
    2013 Blencoe
    2013 Print · USGS
    Covers Onawa, including Blencoe, Monona County, and other nearby areas
  46. 2013 Map of Onawa, 2013 Print
    2013 Map of Onawa, 2013 Print
    2013 Onawa
    2013 Print · USGS
    Covers Onawa, including Kennebec, Monona County, and other nearby areas
  49. 2013 Map of Onawa SW, 2013 Print
    2013 Map of Onawa SW, 2013 Print
    2013 Onawa SW
    2013 Print · USGS
    Covers Onawa, including Whiting, Decatur, and other nearby areas
  52. 2015 Map of Onawa SW, 2015 Print
    2015 Map of Onawa SW, 2015 Print
    2015 Onawa SW
    2015 Print · USGS
    Covers Onawa, including Whiting, Decatur, and other nearby areas
  55. 2015 Map of Blencoe, 2015 Print
    2015 Map of Blencoe, 2015 Print
    2015 Blencoe
    2015 Print · USGS
    Covers Onawa, including Blencoe, Monona County, and other nearby areas
  58. 2015 Map of Onawa, 2015 Print
    2015 Map of Onawa, 2015 Print
    2015 Onawa
    2015 Print · USGS
    Covers Onawa, including Kennebec, Monona County, and other nearby areas
  61. 2018 Map of Onawa SW, 2018 Print
    2018 Map of Onawa SW, 2018 Print
    2018 Onawa SW
    2018 Print · USGS
    Covers Onawa, including Whiting, Decatur, and other nearby areas
  64. 2018 Map of Onawa, 2018 Print
    2018 Map of Onawa, 2018 Print
    2018 Onawa
    2018 Print · USGS
    Covers Onawa, including Kennebec, Monona County, and other nearby areas
  67. 2018 Map of Blencoe, 2018 Print
    2018 Map of Blencoe, 2018 Print
    2018 Blencoe
    2018 Print · USGS
    Covers Onawa, including Blencoe, Monona County, and other nearby areas
  70. 2022 Map of Onawa, 2022 Print
    2022 Map of Onawa, 2022 Print
    2022 Onawa
    2022 Print · USGS
    Western Iowa's agricultural heartland is documented here in the early twenty-first century, centered on the grid of Onawa. Researchers can locate the Monona County Courthouse, trace the Little Sioux River, and find family sites at the Onawa Cem or the settlement of Kennebec.
  73. 2022 Map of Blencoe, 2022 Print
    2022 Map of Blencoe, 2022 Print
    2022 Blencoe
    2022 Print · USGS
    Monona County farmland and Missouri River bottomlands are captured in this recent survey. Genealogists and local historians can trace the streets of Blencoe, find Graceland Cem, and study the extensive drainage system of Fletcher Ditch and Sherman Ditch.
Showing maps 1-25 of 26

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