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

Explore 19 historic maps of Grugan 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 Grugan 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 Grugan Township's history through authentic maps from the 1900s. This is your window into the past.

Grugan Township, PA maps

(19)
  1. 1921 Map of Howard
    1921 Map of Howard
    1921 Howard
    1921 Print · USGS
    The valleys and ridges of Central Pennsylvania are captured here just as the rail-and-river economy was maturing. Researchers can trace family sites among a high density of rural schools and churches like Cedar Spring School, Hunter Run Church, and the town of Lamar.
    3 unique versions available
  4. 1923 Map of Howard
    1923 Map of Howard
    1923 Howard
    1923 Print · USGS
    The valleys of Clinton and Center counties were bustling with rural life in the 1920s as the rail and river economy matured. Genealogists can locate over a dozen local schoolhouses like Wagner School and trace the paths of the Pennsylvania Railroad and Beech Creek Sta.
    6 unique versions available
  7. 1943 Map of Hyner
    1943 Map of Hyner
    1943 Hyner
    1943 Print · USGS
    In the central Pennsylvania highlands during the mid-1940s, the river and rail lines dictated the life of the valley. Researchers can trace the industrial corridor from Renovo Boro to remote outposts like Slate Run and Young Womanstown.
  10. 1946 Map of Renovo East, 1953 Print
    1946 Map of Renovo East, 1953 Print
    1946 Renovo East
    1953 Print · USGS
    The industrial corridor of the West Branch Susquehanna River is seen here in the mid-1940s, showing the critical rail infrastructure of the Pennsylvania railroad. Genealogists can trace family sites in Gleasonton or Farwell and locate the St Josephs Cem.
    3 unique versions available
  13. 1946 Map of Slate Run, 1958 Print
    1946 Map of Slate Run, 1958 Print
    1946 Slate Run
    1958 Print · USGS
    The wilderness of Lycoming and Clinton counties comes into focus in the mid-1940s, highlighting the riverside rail economy and high-plateau landmarks. Genealogists and researchers can trace the New York Central railroad, the Slate Run settlement, and the Pump Station Fire Tower.
    4 unique versions available
  16. 1946 Map of Renovo East, 1958 Print
    1946 Map of Renovo East, 1958 Print
    1946 Renovo East
    1958 Print · USGS
    The West Branch Susquehanna River valley near Renovo is seen here just after the war, showing the industrial pulse of the river and rail lines. Genealogists and historians can locate Fairview Cem, the St Josephs Ch, and old settlements like Gleasonton and Farwell.
    4 unique versions available
  19. 1946 Map of Glen Union, 1964 Print
    1946 Map of Glen Union, 1964 Print
    1946 Glen Union
    1964 Print · USGS
    The West Branch Susquehanna River valley in the mid-1940s reveals a landscape of isolated river settlements and steep timbered hollows. Genealogists and historians can trace the early footprints of Glen Union, Whetham, and the Whetham Fire Tower along the river's winding course.
    5 unique versions available
  22. 1948 Map of Renovo East
    1948 Map of Renovo East
    1948 Renovo East
    1948 Print · USGS
    Clinton County in the late 1940s centers on the busy river corridor of the West Branch Susquehanna River and its mountain settlements. Genealogists and rail historians can trace the Pennsylvania RR through Renovo, find resting places at St Josephs Cem, and locate the Hyner Landing Field.
  25. 1948 Map of Slate Run
    1948 Map of Slate Run
    1948 Slate Run
    1948 Print · USGS
    The Pine Creek Valley near the Lycoming and Clinton county line is shown here just after the war, when the New York Central railroad still served the riverside. Genealogists and hikers can trace the remote hollows and high points like the Pump Station Fire Tower and the Gorge near Slate Run.
    2 unique versions available
  28. 1948 Map of Glen Union
    1948 Map of Glen Union
    1948 Glen Union
    1948 Print · USGS
    Clinton County's river valley and high plateau country are shown in detail here just after the war. Local researchers can locate isolated river settlements like Whetham and Glen Union or trace the winding path of the Bucktail Trail and the Whetham Fire Tower.
    2 unique versions available
  31. 1954 Map of Williamsport
    1954 Map of Williamsport
    1954 Williamsport
    1954 Print · USGS
    North-central Pennsylvania in the mid-fifties is defined by the winding West Branch Susquehanna River and its industrial valley. Local historians can trace the massive Susquehanna Ordnance Depot and the extensive rail networks of the Pennsylvania Railroad.
  34. 1960 Map of Williamsport
    1960 Map of Williamsport
    1960 Williamsport
    1960 Print · USGS
    North-central Pennsylvania in the mid-twentieth century was a vital corridor of rail and river industry stretching from the New York line to the coal regions. Genealogists can trace the rail networks of the Pennsylvania RR and Lehigh Valley RR connecting towns like Williamsport, Towanda, and Lock Haven.
  37. 1962 Map of Williamsport, 1966 Print
    1962 Map of Williamsport, 1966 Print
    1962 Williamsport
    1966 Print · USGS
    North-central Pennsylvania was a landscape of industrial river hubs and vast state woodlands in the early sixties. Researchers can trace the path of the Pennsylvania Railroad through Williamsport and explore the remote reaches of Bucktail State Park.
    5 unique versions available
  40. 1965 Map of Williamsport
    1965 Map of Williamsport
    1965 Williamsport
    1965 Print · USGS
    North-central Pennsylvania in the mid-1960s is defined by the industrial river towns and vast timberlands of the Allegheny Plateau. Researchers can trace historic rail lines like the Erie Lackawanna and Reading as they thread through Williamsport, Lock Haven, and Jersey Shore.
  43. 1966 Map of Williamsport
    1966 Map of Williamsport
    1966 Williamsport
    1966 Print · USGS
    The Susquehanna Valley was a hub of transit and industry in the mid-seventies, where the river's West Branch connected major college towns and timberlands. Researchers can trace historical rail lines like the Reading or locate regional landmarks from Jersey Shore to Ricketts Glen State Park.
  46. 1966 Map of Farrandsville, 1969 Print
    1966 Map of Farrandsville, 1969 Print
    1966 Farrandsville
    1969 Print · USGS
    The West Branch Susquehanna River corridor in the 1960s reveals a landscape of industrial transit and remote ridges. Genealogists can locate the riverside settlements of Farrandsville and Riverview, as well as Peoples Ch and upland strip mines.
    2 unique versions available
  49. 1967 Map of Howard NW, 1968 Print
    1967 Map of Howard NW, 1968 Print
    1967 Howard NW
    1968 Print · USGS
    Clinton County’s deep woods and mining heritage are documented here in the late sixties, showing the remote highlands of Sproul State Forest. Researchers can trace old resource extraction routes and forest clearings like Eagleton Fields and several hillside Strip Mines.
    3 unique versions available
  52. 1984 Map of Williamsport West, 1985 Print
    1984 Map of Williamsport West, 1985 Print
    1984 Williamsport West
    1985 Print · USGS
    Central Pennsylvania in the mid-eighties was a landscape of dense state forests and industrious river towns along the West Branch Susquehanna River. Trace the rail lines of Conrail through Renovo or locate the historic grounds of Lock Haven State College.
    2 unique versions available
  55. 1994 Map of Slate Run, 1999 Print
    1994 Map of Slate Run, 1999 Print
    1994 Slate Run
    1999 Print · USGS
    The wilderness at the junction of Lycoming, Potter, and Clinton counties is captured here in the 1990s. Local researchers can trace the rugged topography of Pine Creek Gorge, the isolated settlement of Slate Run, and the high-elevation Pump Station Fire Tower.
End of results
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