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Old Maps of Union Township, South Dakota for Metal Detecting

Plan your next treasure hunt with 21 historic maps of Union 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 Union Township.

Union Township, SD maps

(21)
  1. 1898 Map of Huron
    1898 Map of Huron
    1898 Huron
    1898 Print · USGS
    Covers Union Township, including Huron, Woonsocket, and other nearby areas
    2 unique versions available
  4. 1899 Map of Mitchell
    1899 Map of Mitchell
    1899 Mitchell
    1899 Print · USGS
    Covers Union Township, including Mitchell, Plankinton, and other nearby areas
    3 unique versions available
  7. 1899 Map of Alexandria
    1899 Map of Alexandria
    1899 Alexandria
    1899 Print · USGS
    Covers Union Township, including Mitchell, Alexandria, and other nearby areas
    4 unique versions available
  10. 1899 Map of De Smet
    1899 Map of De Smet
    1899 De Smet
    1899 Print · USGS
    Covers Union Township, including De Smet, Howard, and other nearby areas
    2 unique versions available
  13. 1953 Map of Huron, 1959 Print
    1953 Map of Huron, 1959 Print
    1953 Huron
    1959 Print · USGS
    Covers Union Township, including Huron, Redfield, and other nearby areas
    2 unique versions available
  16. 1953 Map of Watertown, 1968 Print
    1953 Map of Watertown, 1968 Print
    1953 Watertown
    1968 Print · USGS
    Covers Union Township, including Watertown, Brookings, and other nearby areas
    3 unique versions available
  19. 1954 Map of Huron, 1977 Print
    1954 Map of Huron, 1977 Print
    1954 Huron
    1977 Print · USGS
    Covers Union Township, including Huron, Redfield, and other nearby areas
  22. 1955 Map of Sioux Falls, 1967 Print
    1955 Map of Sioux Falls, 1967 Print
    1955 Sioux Falls
    1967 Print · USGS
    Covers Union Township, including Sioux Falls, Mitchell, and other nearby areas
    3 unique versions available
  25. 1955 Map of Mitchell, 1973 Print
    1955 Map of Mitchell, 1973 Print
    1955 Mitchell
    1973 Print · USGS
    Covers Union Township, including Mitchell, Winner, and other nearby areas
    2 unique versions available
  28. 1957 Map of Farwell NW, 1958 Print
    1957 Map of Farwell NW, 1958 Print
    1957 Farwell NW
    1958 Print · USGS
    Covers Union Township, including Butler Township, Diana Township, and other nearby areas
    2 unique versions available
  31. 1957 Map of Forestburg, 1958 Print
    1957 Map of Forestburg, 1958 Print
    1957 Forestburg
    1958 Print · USGS
    Covers Union Township, including Jackson Township, Silver Creek Township, and other nearby areas
  34. 1957 Map of Letcher NE, 1959 Print
    1957 Map of Letcher NE, 1959 Print
    1957 Letcher NE
    1959 Print · USGS
    Covers Union Township, including Butler Township, Logan Township, and other nearby areas
  37. 1958 Map of Sioux Falls
    1958 Map of Sioux Falls
    1958 Sioux Falls
    1958 Print · USGS
    Covers Union Township, including Sioux Falls, Mitchell, and other nearby areas
  40. 1958 Map of Watertown
    1958 Map of Watertown
    1958 Watertown
    1958 Print · USGS
    Covers Union Township, including Watertown, Brookings, and other nearby areas
    2 unique versions available
  43. 1959 Map of Mitchell
    1959 Map of Mitchell
    1959 Mitchell
    1959 Print · USGS
    Covers Union Township, including Mitchell, Winner, and other nearby areas
  46. 1971 Map of Artesian, 1973 Print
    1971 Map of Artesian, 1973 Print
    1971 Artesian
    1973 Print · USGS
    Covers Union Township, including Artesian, Afton Township, and other nearby areas
  49. 1985 Map of Salem
    1985 Map of Salem
    1985 Salem
    1985 Print · USGS
    Covers Union Township, including Mitchell, Madison, and other nearby areas
  52. 1985 Map of De Smet, 1986 Print
    1985 Map of De Smet, 1986 Print
    1985 De Smet
    1986 Print · USGS
    Covers Union Township, including Madison, De Smet, and other nearby areas
  55. 1985 Map of Huron, 1986 Print
    1985 Map of Huron, 1986 Print
    1985 Huron
    1986 Print · USGS
    Covers Union Township, including Huron, Wessington Springs, and other nearby areas
  58. 1986 Map of Mitchell
    1986 Map of Mitchell
    1986 Mitchell
    1986 Print · USGS
    Covers Union Township, including Mitchell, Kimball, and other nearby areas
    2 unique versions available
  61. 1990 Map of Mitchell, 1991 Print
    1990 Map of Mitchell, 1991 Print
    1990 Mitchell
    1991 Print · USGS
    Covers Union Township, including Mitchell, Winner, and other nearby areas
End of results
Showing maps 1-21 of 21

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Frequently asked questions

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  • Where are historical maps of Union Township sourced from?

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