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1900s (20th Century) Maps of Union Township, Pennsylvania

Explore 31 historic maps of Union Township from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.

Whether you're researching your family's past, planning a metal detecting trip, or studying how Union Township's landscape evolved across the 1900s, these high-resolution maps are a powerful tool for exploring the history of this region.

  • Focus on a specific era: All maps on this page are from the 1900s, giving you a focused view of this time period.
  • See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
  • Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
  • View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.

Start exploring Union Township's history through authentic maps from the 1900s. This is your window into the past.

Union Township, PA maps

(31)
  1. 1924 Map of Hummelstown
    1924 Map of Hummelstown
    1924 Hummelstown
    1924 Print · USGS
    Dauphin and Lebanon Counties in the mid-twenties show a landscape defined by mountain gaps and the reach of the Philadelphia and Reading Railroad. Researchers can trace historic church sites like Walmers Church, early industries at Union Waterworks, and vanished rail stops like Cold Spring.
  4. 1943 Map of Lebanon
    1943 Map of Lebanon
    1943 Lebanon
    1943 Print · USGS
    Mid-century Pennsylvania life is captured here during the Second World War, showing the expansion of the Lebanon Valley rail and road networks. Genealogists can locate family landmarks such as the Heidelberg Meeting House, Kimmerlings Ch, and numerous rural schools like Monroe Valley Sch.
    2 unique versions available
  7. 1943 Map of Lykens
    1943 Map of Lykens
    1943 Lykens
    1943 Print · USGS
    Dauphin and Schuylkill counties are shown in the 1940s as a high-density corridor of anthracite coal production and valley farming. Genealogists and industrial historians can trace the Reading rail lines connecting Williamstown to an Abandoned Colliery and rural landmarks like Himmels Ch.
  10. 1943 Map of Hummelstown
    1943 Map of Hummelstown
    1943 Hummelstown
    1943 Print · USGS
    Dauphin and Lebanon counties appear here during the Second World War as military and industrial growth transformed the countryside. Researchers can trace family landmarks and rural infrastructure, from Moonshine Ch and Union Deposit to the Hershey Zoo.
  13. 1946 Map of Pine Grove
    1946 Map of Pine Grove
    1946 Pine Grove
    1946 Print · USGS
    Schuylkill County in the mid-1940s is a landscape of tight mountain ridges and busy rail corridors serving coal-country towns. Genealogists and researchers can trace local landmarks like Jacobs Ch, the Swatara Valley Airport, and the Reading railroad spurs through Suedberg and Lorberry.
    2 unique versions available
  16. 1947 Map of Tower City
    1947 Map of Tower City
    1947 Tower City
    1947 Print · USGS
    The anthracite coal valleys of Schuylkill and Dauphin Counties are captured here in the late 1940s. Genealogists and historians can trace family locations in Tower City and Williamstown, or locate landmarks like the Porter Township High School and the Union Church.
    3 unique versions available
  19. 1947 Map of Manada Gap
    1947 Map of Manada Gap
    1947 Manada Gap
    1947 Print · USGS
    Dauphin County’s mountainous ridges were still adjusting to a heavy military and industrial footprint just after the war. You can trace the legacy of the local iron industry at Manada Furnace or locate family roots at the Grantville School and Manada Furnace Church.
    3 unique versions available
  22. 1947 Map of Indiantown Gap
    1947 Map of Indiantown Gap
    1947 Indiantown Gap
    1947 Print · USGS
    Lebanon County is shown during a period of significant military and civic expansion in the late 1940s. Genealogists and historians can trace the foundations of Indiantown Gap alongside local landmarks like Moonshine Church and the newly built State Memorial Lake.
    2 unique versions available
  25. 1950 Map of Harrisburg, 1952 Print
    1950 Map of Harrisburg, 1952 Print
    1950 Harrisburg
    1952 Print · USGS
    Mid-century Central Pennsylvania comes alive through its dense rail networks and river valley settlements during the post-war industrial era. Genealogists and historians can trace family roots through hubs like Harrisburg, locate Carlisle Barracks, or follow the Pennsylvania RR through the Lebanon Valley.
  28. 1954 Map of Pine Grove, 1956 Print
    1954 Map of Pine Grove, 1956 Print
    1954 Pine Grove
    1956 Print · USGS
    Schuylkill County in the mid-1950s reveals a landscape defined by industrial railroads and small valley settlements. Researchers can trace ancestral locations from Hollerman Cem to local landmarks like the Drive-in Theater and Swatara Valley Airport.
    4 unique versions available
  31. 1955 Map of Fredericksburg, 1956 Print
    1955 Map of Fredericksburg, 1956 Print
    1955 Fredericksburg
    1956 Print · USGS
    Centered on Fredericksburg and Jonestown in the mid-1950s, this area shows a productive valley landscape framed by the Blue Mountain ridges. Genealogists can locate family landmarks like Groff Sch, Meckville Ch, and the old crossroads at Bunker Hill or Freeport Mills.
    7 unique versions available
  34. 1955 Map of Lykens, 1958 Print
    1955 Map of Lykens, 1958 Print
    1955 Lykens
    1958 Print · USGS
    The anthracite coal valleys of Dauphin and Schuylkill counties are shown here in the mid-1950s, a time of transition for the region's industrial landscape. Genealogists can trace family roots through numerous country landmarks like Himmels Ch, Kissingers Sch, and the Pitman Post Office.
    2 unique versions available
  37. 1955 Map of Pine Grove, 1958 Print
    1955 Map of Pine Grove, 1958 Print
    1955 Pine Grove
    1958 Print · USGS
    Schuylkill County coal towns and the Blue Mountain ridges are documented here in the mid-1950s. Genealogists and researchers can locate family-named landmarks like Klingers Sch and Hauer Ch alongside coal-era infrastructure like Coal Castle.
    3 unique versions available
  40. 1956 Map of Hummelstown, 1958 Print
    1956 Map of Hummelstown, 1958 Print
    1956 Hummelstown
    1958 Print · USGS
    Dauphin and Lebanon Counties are shown in the mid-1950s as the chocolate industry and military training shaped the local landscape. Genealogists and historians can trace family roots through labeled landmarks like Balsbaugh Ch, Harper Tavern, and the Manada Furnace.
    3 unique versions available
  43. 1957 Map of Harrisburg
    1957 Map of Harrisburg
    1957 Harrisburg
    1957 Print · USGS
    Mid-century Central Pennsylvania comes into focus as a bustling network of rail, river, and mountain ridges. Genealogists and historians can trace the development of the State Capitol and surrounding hubs like Middletown, Columbia, and Pottsville.
    7 unique versions available
  46. 1961 Map of Harrisburg
    1961 Map of Harrisburg
    1961 Harrisburg
    1961 Print · USGS
    Central Pennsylvania is shown at a mid-century peak of industrial and military activity, from the Susquehanna water gaps to the fertile Dutch Country. Genealogists and historians can trace the rail corridors of the Pennsylvania RR and find landmarks like Carlisle Barracks or the Anthracite Coal Fields.
    2 unique versions available
  49. 1964 Map of Harrisburg
    1964 Map of Harrisburg
    1964 Harrisburg
    1964 Print · USGS
    Central Pennsylvania in the mid-fifties reveals a landscape shaped by ridge-and-valley geology and critical Cold War infrastructure. Researchers can trace the massive Indiantown Gap Military Reservation or the rail corridors of the Pennsylvania RR and Reading RR.
  52. 1968 Map of Tower City
    1968 Map of Tower City
    1968 Tower City
    1968 Print · USGS
    The anthracite region's industrial footprint is on full display here in the late sixties, where valley towns are hemmed in by massive mountain ridges. Genealogists and historians can trace the foundations of Tower City and Williamstown alongside an Abandoned Coal Breaker and several local schools.
  55. 1969 Map of Indiantown Gap, 1972 Print
    1969 Map of Indiantown Gap, 1972 Print
    1969 Indiantown Gap
    1972 Print · USGS
    Lebanon County at the close of the 1960s reveals a landscape where military training grounds and mountain trails meet historic canal towns. Researchers can trace the Union Canal, find local landmarks like Moonshine Ch, or explore the development of Indiantown Gap Military Reservation.
    2 unique versions available
  58. 1969 Map of Tower City, 1972 Print
    1969 Map of Tower City, 1972 Print
    1969 Tower City
    1972 Print · USGS
    Schuylkill and Dauphin counties show a sharp contrast between coal-mining towns and deep mountain forests in the late sixties. Trace the rail-and-road corridor through Tower City and Williamstown or find the remote paths of the Appalachian Trail and Bendigo Airfield.
    4 unique versions available
  61. 1969 Map of Grantville, 1972 Print
    1969 Map of Grantville, 1972 Print
    1969 Grantville
    1972 Print · USGS
    Dauphin County’s ridge-and-valley terrain is captured here in the late sixties, showcasing a landscape defined by military reservations and mountain gaps. Genealogists and hikers can trace the Appalachian Trail across Sharp Mountain or locate family roots near St Pauls Cem and the village of Grantville.
    6 unique versions available
  64. 1977 Map of Fredericksburg, 1979 Print
    1977 Map of Fredericksburg, 1979 Print
    1977 Fredericksburg
    1979 Print · USGS
    Northern Lebanon County in the late seventies reveals a landscape of varied agricultural patterns and traditional settlements. Researchers can trace the development of Jonestown and Fredericksburg or locate features along Swatara Creek.
  67. 1977 Map of Pine Grove, 1979 Print
    1977 Map of Pine Grove, 1979 Print
    1977 Pine Grove
    1979 Print · USGS
    Pine Grove and the coal region foothills are seen from above in the late seventies as modern highways began to reshape the valley. Genealogists and local historians can trace the footprint of settlements like Suedberg and Ravine nestled between Second Mountain and Sharp Mountain.
  70. 1977 Map of Tower City, 1979 Print
    1977 Map of Tower City, 1979 Print
    1977 Tower City
    1979 Print · USGS
    The western Schuylkill County coal region is seen here in the late seventies, showing how the dramatic mountain ridges shaped local life. Genealogists and local historians can trace the clear street grids and valley footprints of Tower City, Orwin, and Muir.
  73. 1977 Map of Indiantown Gap, 1979 Print
    1977 Map of Indiantown Gap, 1979 Print
    1977 Indiantown Gap
    1979 Print · USGS
    Lebanon County's landscape in the late seventies reveals the intersection of mountain ridges and valley farming. Trace the early layout of Indiantown Gap and local crossroads like Harper Tavern and Lickdale.
Showing maps 1-25 of 31

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Frequently asked questions

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