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Old Maps of New Plymouth, Idaho for Metal Detecting

Plan your next treasure hunt with 11 historic maps of New Plymouth. 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 New Plymouth.

New Plymouth, ID maps

(11)
  1. 1898 Map of Nampa
    1898 Map of Nampa
    1898 Nampa
    1898 Print · USGS
    The Treasure Valley's transformation is visible in the 1890s as railroads and massive irrigation projects began to reshape the high desert. Researchers can trace the development of early rail lines like the Boise Nampa & Owyhee R. R. and early canals such as the Riverside Canal and Newman Canal.
    4 unique versions available
  4. 1955 Map of Boise, 1977 Print
    1955 Map of Boise, 1977 Print
    1955 Boise
    1977 Print · USGS
    The Treasure Valley and Owyhee uplands are shown in detail during the mid-fifties, capturing the region's transition into a major agricultural and urban hub. Researchers can trace the Union Pacific line through Nampa, explore the volcanic Jordan Craters, or locate the historic mining district of Silver City.
  7. 1958 Map of Boise
    1958 Map of Boise
    1958 Boise
    1958 Print · USGS
    The Treasure Valley and Snake River Plain come alive in the mid-fifties as the rail-and-river economy transitions into a modern agricultural hub. Trace the Union Pacific lines through Nampa or locate remote landmarks like Initial Point and the Rockville settlement.
    2 unique versions available
  10. 1962 Map of Boise
    1962 Map of Boise
    1962 Boise
    1962 Print · USGS
    The Treasure Valley at the start of the sixties reveals a landscape of expanding towns and complex irrigation networks along the Snake River. Genealogists and historians can trace the foundations of modern Idaho through markers like Initial Point, the mining history of Silver City, and the early infrastructure of Lucky Peak Dam.
  13. 1965 Map of New Plymouth, 1967 Print
    1965 Map of New Plymouth, 1967 Print
    1965 New Plymouth
    1967 Print · USGS
    The Lower Payette Valley and the distinctive horseshoe town of New Plymouth are shown here in the mid-sixties during a period of steady agricultural development. Researchers can trace the layout of the County Fairgrounds, the Union Pacific rail route, and local sites like Hamilton Corner.
    2 unique versions available
  16. 1981 Map of Boise
    1981 Map of Boise
    1981 Boise
    1981 Print · USGS
    The Boise River valley and Treasure Plain are captured here in the early eighties as urban expansion began to link the regional hubs of the Snake River plain. Researchers can trace the development of Nampa, Caldwell, and Meridian or locate landmarks like Lake Lowell and Eagle Island State Park.
    2 unique versions available
  19. 2010 Map of New Plymouth, 2010 Print
    2010 Map of New Plymouth, 2010 Print
    2010 New Plymouth
    2010 Print · USGS
    Covers New Plymouth, including Payette County, United States, and other nearby areas
  22. 2013 Map of New Plymouth, 2013 Print
    2013 Map of New Plymouth, 2013 Print
    2013 New Plymouth
    2013 Print · USGS
    Covers New Plymouth, including Payette County, United States, and other nearby areas
  25. 2017 Map of New Plymouth, 2017 Print
    2017 Map of New Plymouth, 2017 Print
    2017 New Plymouth
    2017 Print · USGS
    Covers New Plymouth, including Payette County, United States, and other nearby areas
  28. 2020 Map of New Plymouth, 2020 Print
    2020 Map of New Plymouth, 2020 Print
    2020 New Plymouth
    2020 Print · USGS
    Covers New Plymouth, including Payette County, United States, and other nearby areas
  31. 2023 Map of New Plymouth, 2023 Print
    2023 Map of New Plymouth, 2023 Print
    2023 New Plymouth
    2023 Print · USGS
    The agricultural heart of the Payette Valley is mapped here in the early 2020s, showing the intersection of irrigation and settlement. Trace the routes of the Farmers Cooperative Canal and locate family sites near Park View Cem and Hamilton Corner.
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