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Old Maps of Olmsted County, Minnesota for Metal Detecting

Plan your next treasure hunt with 147 historic maps of Olmsted County. 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 Olmsted County.

Olmsted County, MN maps

(147)
  1. 1934 Map of Plainview, 1960 Print
    1934 Map of Plainview, 1960 Print
    1934 Plainview
    1960 Print · USGS
    Wabasha and Winona Counties are shown in the mid-1930s as the railroad era connects prairie towns to the dramatic river bluffs. Genealogists can trace rural homesteads through a dense network of district schools like Fisher Hill Sch and historic grounds such as the Wabasha County Fair Grounds.
  4. 1935 Map of Rochester
    1935 Map of Rochester
    1935 Rochester
    1935 Print · USGS
    Southeastern Minnesota during the mid-thirties reveals a landscape of thriving river towns and dense rural school districts. Genealogists and historians can trace family roots through numerous country schools like Sch No 106 and cemeteries such as Pleasant Prairie Cem.
  7. 1938 Map of Plainview
    1938 Map of Plainview
    1938 Plainview
    1938 Print · USGS
    Southeastern Minnesota's driftless landscape was a patchwork of family farms and rural school districts in the late thirties. Genealogists and historians can trace the foundations of Plainview and Elba, and locate several burial grounds like Greenwood Cem and Fairwater Cem.
    2 unique versions available
  10. 1939 Map of Rochester
    1939 Map of Rochester
    1939 Rochester
    1939 Print · USGS
    Rochester and the Zumbro River valley are captured here in the mid-thirties, showcasing the city's early layout and the surrounding agrarian townships. Genealogists can trace family roots through dozens of named country schools and churches like South Troy Ch and Webster Sch.
    4 unique versions available
  13. 1953 Map of Saint Paul, 1964 Print
    1953 Map of Saint Paul, 1964 Print
    1953 Saint Paul
    1964 Print · USGS
    The Twin Cities and the Mississippi River valley are captured here at a mid-century turning point. Trace the early growth of Minneapolis and Saint Paul alongside landmarks like Lake Minnetonka and the St Croix River.
    4 unique versions available
  16. 1954 Map of Chatfield, 1956 Print
    1954 Map of Chatfield, 1956 Print
    1954 Chatfield
    1956 Print · USGS
    Southeastern Minnesota's river valleys and rail towns are captured here in the mid-1950s, showing the region's transition from a rural schoolhouse network to modern townships. Genealogists can locate family-named landmarks like Loughrey Sch or Casper Sch and early church sites such as Root Prairie Ch.
    2 unique versions available
  19. 1954 Map of Mason City, 1967 Print
    1954 Map of Mason City, 1967 Print
    1954 Mason City
    1967 Print · USGS
    Southern Minnesota and northern Iowa are shown here at the height of the mid-century rail era, centered on the regional hubs of Mason City and Rochester. Researchers can trace the vanished paths of the Chicago Great Western and find local landmarks like Pilot Knob and Bear Lake.
    2 unique versions available
  22. 1955 Map of Stewartville, 1956 Print
    1955 Map of Stewartville, 1956 Print
    1955 Stewartville
    1956 Print · USGS
    Southern Minnesota's farming country and river valleys are shown in the mid-fifties as rural life revolved around local rail depots and school districts. Researchers can find numerous country schools like Little Red Sch and St Bridget Sch, plus family-named cemeteries such as Holy Redeemer Cem and Jerusalem Cem.
    2 unique versions available
  25. 1955 Map of High Forest, 1957 Print
    1955 Map of High Forest, 1957 Print
    1955 High Forest
    1957 Print · USGS
    Southeast Minnesota's agricultural heartland is captured here in the mid-fifties, showing the rural township structure before modern highway expansion. Researchers can trace the legacy of early Norwegian and German settlers through sites like East St Olaf Ch, Shanty Town, and Folkestad Sch.
  28. 1957 Map of Mason City
    1957 Map of Mason City
    1957 Mason City
    1957 Print · USGS
    The Minnesota-Iowa border region comes alive in this mid-century survey, from the industrial plants of Mason City to the medical hub of Rochester. Researchers can trace the rail-and-river economy through the Chicago Great Western Railway and the Shell Rock River.
  31. 1958 Map of Mason City
    1958 Map of Mason City
    1958 Mason City
    1958 Print · USGS
    Southern Minnesota and northern Iowa are shown during the mid-fifties when railroads still anchored the regional economy. Genealogists and historians can trace the intricate rail networks of the Illinois Central and find local landmarks in Mason City, Albert Lea, and Austin.
  34. 1959 Map of Saint Paul
    1959 Map of Saint Paul
    1959 Saint Paul
    1959 Print · USGS
    The Twin Cities and southeastern Minnesota appear here in the late fifties, showing the peak of the rail era and post-war suburban growth. Genealogists can trace family footprints near Lake Minnetonka, the Univ Of Minn Rosemount Research Center, or the growing neighborhoods of Richfield.
    2 unique versions available
  37. 1965 Map of Oronoco, 1967 Print
    1965 Map of Oronoco, 1967 Print
    1965 Oronoco
    1967 Print · USGS
    The Olmsted County countryside near Oronoco is captured here in the mid-sixties, centered on the waters of Shady Lake. Genealogists and local historians can trace the Chicago Great Western rail line past St Peters Ch and the Townhall.
    2 unique versions available
  40. 1965 Map of Byron, 1967 Print
    1965 Map of Byron, 1967 Print
    1965 Byron
    1967 Print · USGS
    The railroad towns of Kasson and Byron are captured in the mid-sixties, showing the transition from traditional farming to modern growth. Researchers can trace the Chicago and North Western rail line and locate landmarks like the Fairground and Othello Cem.
    2 unique versions available
  43. 1965 Map of Pine Island, 1967 Print
    1965 Map of Pine Island, 1967 Print
    1965 Pine Island
    1967 Print · USGS
    Pine Island and the surrounding agricultural townships are seen here in the mid-1960s as the rail and river networks shaped the region. Genealogists and local historians can locate early burial sites like St Michael Cem and follow the Chicago Great Western tracks.
    2 unique versions available
  46. 1966 Map of Douglas, 1967 Print
    1966 Map of Douglas, 1967 Print
    1966 Douglas
    1967 Print · USGS
    Olmsted County rural life meets the expanding edge of the city in the mid-sixties. Genealogists and local historians can locate early schools like Stone Corner Sch, various Gravel Pits, and trace the path of the Chicago Great Western railroad.
    3 unique versions available
  49. 1972 Map of Zumbro Lake, 1975 Print
    1972 Map of Zumbro Lake, 1975 Print
    1972 Zumbro Lake
    1975 Print · USGS
    The Zumbro River valley in the early seventies shows a transition between wooded state forest land and the steady agricultural grids of Olmsted County. Researchers can trace riverside developments at Cedar Beach, find the Woodville Chapel, or locate rural burials at Farm Hill Cem.
    2 unique versions available
  52. 1972 Map of Plainview SW, 1975 Print
    1972 Map of Plainview SW, 1975 Print
    1972 Plainview SW
    1975 Print · USGS
    Southeast Minnesota in the early seventies reveals a landscape of deep river valleys and high agricultural plateaus. Researchers can trace rural life through sites like St Pauls Ch, Little Valley Cem, and the wooded stretches of Carley State Park.
    2 unique versions available
  55. 1972 Map of Rochester, 1975 Print
    1972 Map of Rochester, 1975 Print
    1972 Rochester
    1975 Print · USGS
    Rochester and its surrounding townships are shown here during a period of significant institutional and suburban growth in the early seventies. Genealogists and local historians can map the city's evolution through landmarks like the Mayo Clinic, Oakwood Cemetery, and the Chicago and North Western rail lines.
    4 unique versions available
  58. 1972 Map of Chester, 1975 Print
    1972 Map of Chester, 1975 Print
    1972 Chester
    1975 Print · USGS
    Olmsted County’s rural townships are captured here in the early seventies, showing a landscape defined by small rail stops and upland forests. Researchers can locate the Haverhill Sch, trace the Chicago and North Western rail line, or find family plots at Haverhill Cem and Oak Hill Cem.
  61. 1972 Map of Millville, 1975 Print
    1972 Map of Millville, 1975 Print
    1972 Millville
    1975 Print · USGS
    The Zumbro River valley and its surrounding plateaus appear here in the early 1970s, showing a landscape of river towns and high-ground farming. Genealogists and local historians can trace small communities like Millville and Bremen, or locate rural landmarks such as Oakwood Ch and Pleasant Prairie Cem.
  64. 1972 Map of Elba, 1975 Print
    1972 Map of Elba, 1975 Print
    1972 Elba
    1975 Print · USGS
    Southeast Minnesota's bluff country is captured here in the 1970s, where the Whitewater River forks converge near the town of Elba. Researchers can locate rural landmarks such as St Aloysius Cem, the Lookout Tower, and the remote crossroads of Kingsley Corner.
    2 unique versions available
  67. 1974 Map of Rock Dell, 1976 Print
    1974 Map of Rock Dell, 1976 Print
    1974 Rock Dell
    1976 Print · USGS
    Dodge and Olmsted Counties come into focus during the mid-1970s as agricultural patterns and small rural settlements define the landscape. Researchers can trace local history through sites like East St Olaf Ch, the South Zumbro Ch, and the hamlet of Shanty Town.
  70. 1974 Map of High Forest, 1976 Print
    1974 Map of High Forest, 1976 Print
    1974 High Forest
    1976 Print · USGS
    High Forest and the surrounding townships of Olmsted and Mower counties are shown here during the mid-seventies. Genealogists can trace family landmarks like the Pleasant Valley Ch and St Johns Cem, while tracing the course of the North Branch Root River.
  73. 1974 Map of Salem Corners, 1976 Print
    1974 Map of Salem Corners, 1976 Print
    1974 Salem Corners
    1976 Print · USGS
    Western Olmsted County appears here in the mid-seventies, showing a landscape of river valleys and growing municipal infrastructure. Genealogists and local historians can locate Riverside Cem, the Bamber Valley Sch, and the Rochester Municipal Airport.
    2 unique versions available
Showing maps 1-25 of 147

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Frequently asked questions

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