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Old Maps of Portland Township, South Dakota for Metal Detecting

Plan your next treasure hunt with 13 historic maps of Portland Township. 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 Portland Township.

Portland Township, SD maps

(13)
  1. 1953 Map of Watertown, 1968 Print
    1953 Map of Watertown, 1968 Print
    1953 Watertown
    1968 Print · USGS
    Eastern South Dakota and the Minnesota borderlands are captured here during the mid-twentieth century as the region's agricultural and rail-service centers thrived. Genealogists and local historians can trace family-named sites across the Coteau des Prairies and find landmarks in Watertown, De Smet, and Brookings.
    3 unique versions available
  4. 1958 Map of Watertown
    1958 Map of Watertown
    1958 Watertown
    1958 Print · USGS
    The eastern South Dakota prairie and the Minnesota borderlands are captured here in the late fifties, showcasing a landscape of terminal moraine lakes and burgeoning rail hubs. Genealogists and historians can trace the early paths of the Chicago and North Western railroad or locate family roots in Watertown, Clark, or the Sisseton Indian Reservation.
    2 unique versions available
  7. 1970 Map of Goodwin, 1972 Print
    1970 Map of Goodwin, 1972 Print
    1970 Goodwin
    1972 Print · USGS
    Deuel County in the early seventies reveals a landscape of glacial lakes and prairie conservation. Genealogists and local historians can trace the Goodwin townsite, the Goodwin Cem, and the path of the Old Railroad Grade.
    2 unique versions available
  10. 1973 Map of Tunerville, 1976 Print
    1973 Map of Tunerville, 1976 Print
    1973 Tunerville
    1976 Print · USGS
    Deuel County's prairie wetlands and small crossroads settlements are captured here in the early 1970s. Local researchers can trace the rural layouts of Tunerville and Altamont or locate the Nelson Cem and Townhall among the numerous waterfowl production areas.
  13. 1985 Map of Clear Lake
    1985 Map of Clear Lake
    1985 Clear Lake
    1985 Print · USGS
    The South Dakota and Minnesota borderlands are captured here in the mid-eighties as a landscape of prairie towns and wildlife refuges. Researchers can trace the legacy of regional transport through the Chicago and North Western tracks and the Old Railroad Grade.
    2 unique versions available
  16. 2012 Map of Tunerville, 2012 Print
    2012 Map of Tunerville, 2012 Print
    2012 Tunerville
    2012 Print · USGS
    Covers Portland Township, including Goodwin Township, Altamont Township, and other nearby areas
  19. 2012 Map of Goodwin, 2012 Print
    2012 Map of Goodwin, 2012 Print
    2012 Goodwin
    2012 Print · USGS
    Covers Portland Township, including Goodwin, Goodwin Township, and other nearby areas
  22. 2015 Map of Tunerville, 2015 Print
    2015 Map of Tunerville, 2015 Print
    2015 Tunerville
    2015 Print · USGS
    Covers Portland Township, including Goodwin Township, Altamont Township, and other nearby areas
  25. 2015 Map of Goodwin, 2015 Print
    2015 Map of Goodwin, 2015 Print
    2015 Goodwin
    2015 Print · USGS
    Covers Portland Township, including Goodwin, Goodwin Township, and other nearby areas
  28. 2017 Map of Goodwin, 2017 Print
    2017 Map of Goodwin, 2017 Print
    2017 Goodwin
    2017 Print · USGS
    Covers Portland Township, including Goodwin, Goodwin Township, and other nearby areas
  31. 2017 Map of Tunerville, 2017 Print
    2017 Map of Tunerville, 2017 Print
    2017 Tunerville
    2017 Print · USGS
    Covers Portland Township, including Goodwin Township, Altamont Township, and other nearby areas
  34. 2021 Map of Goodwin, 2021 Print
    2021 Map of Goodwin, 2021 Print
    2021 Goodwin
    2021 Print · USGS
    Goodwin and the surrounding glacial uplands of the Coteau des Prairies are documented here in the early 2020s. Researchers can trace family sites near Goodwin Cem and Larson Cem, or explore the lake-dotted prairie landscape around Round Lake and School Lake.
  37. 2021 Map of Tunerville, 2021 Print
    2021 Map of Tunerville, 2021 Print
    2021 Tunerville
    2021 Print · USGS
    The glacial landscape of the Coteau des Prairies is documented here in the early 2020s. Researchers can locate the Nelson Cem, trace the waters of Conner Slough, and explore the rural crossroads of Tunerville.
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