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Old Maps of Harmony Township, New Jersey for Metal Detecting

Plan your next treasure hunt with 43 historic maps of Harmony 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 Harmony Township.

Harmony Township, NJ maps

(43)
  1. 1890 Map of Easton
    1890 Map of Easton
    1890 Easton
    1890 Print · USGS
    The Delaware River valley thrived as a transport hub during the 1890s, where three major canals and multiple railroads met at the Pennsylvania-New Jersey border. Genealogists and industrial historians can trace the paths of the Morris Canal, the works at Durham Furnace, and the strategic Musconetcong Tunnel.
  4. 1891 Map of Easton
    1891 Map of Easton
    1891 Easton
    1891 Print · USGS
    The Delaware River valley thrived as a corridor of heavy industry and transit in the 1890s. Trace the path of historic waterways and early rail lines, including the Morris Canal, the ironworks at Durham Furnace, and rural crossroads like Still Valley.
    8 unique versions available
  7. 1891 Map of Delaware Water Gap
    1891 Map of Delaware Water Gap
    1891 Delaware Water Gap
    1891 Print · USGS
    The Delaware River corridor was a bustling industrial and transport hub in the late nineteenth century. Genealogists and historians can trace the region's slate mining roots at the Old Bangor Slate Quarry or locate historic river crossings like Myeres Ferry and Hartzells Ferry.
  10. 1893 Map of Delaware Water Gap
    1893 Map of Delaware Water Gap
    1893 Delaware Water Gap
    1893 Print · USGS
    The Delaware River borderlands between Pennsylvania and New Jersey are captured here in the late nineteenth century as the slate industry and railroads transformed the valley. Researchers can locate the Old Bangor Slate Quarry, trace the river crossings at Myeres Ferry, and explore old stops like Stone Church P. O.
    12 unique versions available
  13. 1932 Map of Easton
    1932 Map of Easton
    1932 Easton
    1932 Print · USGS
    The Delaware River valley thrived as a corridor of industry and transport in the early 1930s, bridging Pennsylvania and New Jersey. Genealogists and historians can trace the legacy of early industry along the Morris Canal or locate local landmarks like St Josephs Ch and Mine Hill.
    5 unique versions available
  16. 1936 Map of Delaware Water Gap
    1936 Map of Delaware Water Gap
    1936 Delaware Water Gap
    1936 Print · USGS
    The Delaware River valley thrived in the mid-thirties as a critical junction for coal-hauling railroads and mountain tourism. Local historians can trace family roots through numerous rural landmarks like Spoke Factory Sch, Ross Cem, and Slateford Junction.
    4 unique versions available
  19. 1941 Map of Delaware Water Gap
    1941 Map of Delaware Water Gap
    1941 Delaware Water Gap
    1941 Print · USGS
    The Delaware River valley is captured here in the early 1940s, showing the borderlands of Pennsylvania and New Jersey. Genealogists can trace family names through dozens of rural landmarks like Three Church Hill, Brass Castle, and the Stone Church PO.
  22. 1942 Map of Delaware Water Gap
    1942 Map of Delaware Water Gap
    1942 Delaware Water Gap
    1942 Print · USGS
    The Delaware River gorge and its surrounding ridges come into focus during the early war years, highlighting a critical rail and river junction. Trace local history through family-named landmarks like Miller Ch, rural Quaker Plain Sch, and the unique name of Manunka Chunk.
    3 unique versions available
  25. 1943 Map of Bangor
    1943 Map of Bangor
    1943 Bangor
    1943 Print · USGS
    The slate and cement industries of the Pennsylvania-New Jersey border are captured in high detail at the height of wartime production. Genealogists and industrial historians can trace rail spurs to the Old Bangor Slate Quarry, locate the Middaghs PO, and find rural landmarks like Three Church Hill.
  28. 1943 Map of Easton
    1943 Map of Easton
    1943 Easton
    1943 Print · USGS
    Easton and Phillipsburg emerge as a powerhouse of industrial and river activity at the height of the 1940s. Genealogists and historians can trace the paths of the Lehigh Canal, locate the South Easton Cem, and identify old sites like Island Park and the Vulcanite Cement Co.
  31. 1943 Map of Bethlehem
    1943 Map of Bethlehem
    1943 Bethlehem
    1943 Print · USGS
    Northampton and Lehigh counties hummed with industry and river commerce during the early war years. Researchers can trace the path of the Lehigh Valley RR, locate family-named landmarks like Chief Tatamy, and find rural schools such as Mexico School and Poplar Valley Sch.
  34. 1943 Map of Belvidere
    1943 Map of Belvidere
    1943 Belvidere
    1943 Print · USGS
    The river and rail corridors of Warren County define this wartime landscape as it stood in the early 1940s. Genealogists and historians can trace the local industry of Belvidere, the early runways of Martins Creek Airport, and the historic industrial site of Oxford Furnace.
  37. 1943 Map of Bloomsbury
    1943 Map of Bloomsbury
    1943 Bloomsbury
    1943 Print · USGS
    Bloomsbury and the Musconetcong Valley are captured here during the mid-forties, showing a landscape shaped by heavy industry and vital rail corridors. Researchers can trace the massive Edison Portland Cement Co, the path of the Morris Canal, and local landmarks like Kennedy Mills.
  40. 1944 Map of Newark, 1971 Print
    1944 Map of Newark, 1971 Print
    1944 Newark
    1971 Print · USGS
    The industrial corridor from Philadelphia to New York was in a period of massive transition during the mid-forties. Genealogists and researchers can trace the rail lines of the Lehigh Valley RR, locate military installations like Picatinny Arsenal, and explore the early sprawl near Levittown.
    5 unique versions available
  43. 1949 Map of Newark
    1949 Map of Newark
    1949 Newark
    1949 Print · USGS
    The industrial corridor between Philadelphia and New York comes alive in this post-war survey. Genealogists and historians can trace the massive rail networks of the Reading Railroad and locate major installations like Fort Dix or Picatinny Arsenal.
    2 unique versions available
  46. 1953 Map of Easton
    1953 Map of Easton
    1953 Easton
    1953 Print · USGS
    The industrial core of the Delaware and Lehigh forks comes to life in this mid-century survey of the Pennsylvania-New Jersey border. Genealogists and historians can trace the footprint of Lafayette College, the path of the Morris Canal, and local landmarks like Hays Cemetery.
    2 unique versions available
  49. 1953 Map of Bangor
    1953 Map of Bangor
    1953 Bangor
    1953 Print · USGS
    The industrial heart of Northampton County is on full display here just after the war, where slate and cement production drive the local economy. Researchers can trace the extensive rail networks serving the Old Bangor Slate Quarry, the Alpha Cement Co, and the rural post office at Middaghs PO.
  52. 1953 Map of Belvidere
    1953 Map of Belvidere
    1953 Belvidere
    1953 Print · USGS
    Warren County industry and the Delaware River corridor are captured in detail here during the post-war years. Researchers can trace the rail lines of the Belvidere Division and locate landmarks like Oxford Furnace and Hercules Powder Co.
    2 unique versions available
  55. 1955 Map of Belvidere, 1956 Print
    1955 Map of Belvidere, 1956 Print
    1955 Belvidere
    1956 Print · USGS
    The Delaware River valley in the mid-1950s shows a landscape of busy river towns and climbing mountain ridges. Genealogists and historians can trace rail lines through Manunka Chunk and Roxburg Station, or find rural landmarks like Hillside Cem.
    6 unique versions available
  58. 1955 Map of Bloomsbury, 1956 Print
    1955 Map of Bloomsbury, 1956 Print
    1955 Bloomsbury
    1956 Print · USGS
    The Musconetcong Valley in the mid-1950s reveals a landscape where historic industrial infrastructure meets post-war growth. Genealogists and historians can trace family-named roads and rural hamlets like Stewartsville, Asbury, and the path of the old Morris Canal.
    4 unique versions available
  61. 1956 Map of Newark
    1956 Map of Newark
    1956 Newark
    1956 Print · USGS
    The industrial heart of the Mid-Atlantic is captured here at the dawn of the highway era, tracing the dense corridors between Newark and Philadelphia. Genealogists and local historians can map the rail networks of the Reading RR or locate mid-century military life at Fort Dix Military Reservation.
    2 unique versions available
  64. 1956 Map of Bangor, 1958 Print
    1956 Map of Bangor, 1958 Print
    1956 Bangor
    1958 Print · USGS
    Northampton County thrives in the mid-fifties as a center of quarrying and rail transport between the Slate Belt boroughs and the Delaware River. Genealogists and historians can trace family roots at Evergreen Cem, explore the early footprint of Bangor, and locate rural landmarks like Stone Church.
    6 unique versions available
  67. 1956 Map of Easton, 1958 Print
    1956 Map of Easton, 1958 Print
    1956 Easton
    1958 Print · USGS
    Easton and Phillipsburg stand as twin industrial hubs at the Delaware and Lehigh confluence in the mid-fifties. Genealogists and historians can trace the footprint of Lafayette College, search for family sites at Arndts & Messinger Cem, or follow the many rail lines like the Pennsylvania RR.
    7 unique versions available
  70. 1957 Map of Newark
    1957 Map of Newark
    1957 Newark
    1957 Print · USGS
    The industrial and military heart of the Mid-Atlantic is mapped during its post-war suburban boom. Genealogists and historians can trace the intricate rail corridors of the Reading Railroad and locate key landmarks from Princeton University to Fort Hancock.
  73. 1960 Map of Newark
    1960 Map of Newark
    1960 Newark
    1960 Print · USGS
    The industrial heart of the Mid-Atlantic is shown at mid-century, stretching from the dense urban centers of Newark and Philadelphia to the Blue Mountain ridges. Researchers can trace historic rail lines, coastal defenses at Fort Hancock, and the riverfront growth of Trenton and Easton.
    3 unique versions available
Showing maps 1-25 of 43

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