1900s (20th Century) Maps of Seneca, Maryland
Explore 13 historic maps of Seneca 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 Seneca'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 Seneca's history through authentic maps from the 1900s. This is your window into the past.
Seneca, MD maps
(13)- 1908 Map of Seneca
1908 Seneca1908 Print · USGSThe Potomac River valley at the turn of the century shows a vital landscape of canal commerce and emerging rail lines. Genealogists and historians can trace family-named sites across the Maryland-Virginia border, from Poolesville to river crossings at Whites Ferry and Edwards Ferry.7 unique versions available - 1944 Map of Seneca
1944 Seneca1944 Print · USGSThe Potomac River valley and the Maryland-Virginia border are captured here during the mid-forties. Local historians can trace the Chesapeake and Ohio Canal and locate old crossroads like Darnestown, Quince Orchard, and Dranesville.2 unique versions available - 1944 Map of Seneca, 1963 Print
1944 Seneca1963 Print · USGSUpper Montgomery County and the Potomac River valley are captured here just before the expansion of the D.C. suburbs. Researchers can trace the legacy of river commerce and rail travel through the Chesapeake and Ohio Canal, the Monocacy Aqueduct, and the Baltimore and Ohio RR line. - 1948 Map of Baltimore
1948 Baltimore1948 Print · USGSMaryland and Pennsylvania crossroads are captured in the late 1940s, showing a landscape defined by historic rail lines and major military installations. Genealogists can trace family connections in Gettysburg, Westminster, and near the U.S. Naval Academy in Annapolis.2 unique versions available - 1952 Map of Seneca, 1954 Print
1952 Seneca1954 Print · USGSMaryland and Virginia borderlands met at the Potomac during the early fifties, before suburban expansion transformed these rural reaches. Researchers can trace the path of the Chesapeake and Ohio Canal and locate historic points like Darnestown and the Forestville Sch.4 unique versions available - 1954 Map of Baltimore
1954 Baltimore1954 Print · USGSThe Mid-Atlantic region in the early fifties shows a landscape of growing suburban centers and heavy rail corridors. Trace mid-century transit networks and military landmarks from the Aberdeen Proving Ground to the Gettysburg National Military Park. - 1956 Map of Baltimore
1956 Baltimore1956 Print · USGSMid-century Maryland and Pennsylvania are captured here during a period of massive suburban and military growth across the Chesapeake region. Genealogists and historians can trace the rail corridors of the Baltimore & Ohio RR and locate landmarks like Fort McHenry or the Aberdeen Proving Ground. - 1957 Map of Baltimore, 1964 Print
1957 Baltimore1964 Print · USGSMaryland and Southern Pennsylvania are shown during the mid-century expansion of the Baltimore-Washington corridor. Researchers can trace the extensive rail lines of the Baltimore & Ohio RR and locate sites like Fort Detrick and Gettysburg National Military Park.5 unique versions available - 1961 Map of Baltimore
1961 Baltimore1961 Print · USGSMaryland and Pennsylvania are captured at a mid-century peak of industrial and military expansion. Genealogists and historians can trace rail corridors like the Western Maryland Ry or locate regional landmarks such as Camp Detrick and Kent Island. - 1968 Map of Seneca, 1970 Print
1968 Seneca1970 Print · USGSThe Potomac River borderlands in the late sixties reveal a landscape of river islands and growing crossroads communities. Researchers can trace the Chesapeake and Ohio Canal Towpath or locate family sites near Salem Ch and Darnestown.4 unique versions available - 1984 Map of Frederick, 1985 Print
1984 Frederick1985 Print · USGSMaryland's Piedmont and the Potomac River valley are shown here in the mid-eighties as suburban growth began to meet historic rural landscapes. Genealogists and historians can trace the paths of the Baltimore and Ohio RR or locate the boundaries of Antietam National Battlefield and Fort Detrick. - 1989 Map of Baltimore
1989 Baltimore1989 Print · USGSThe Mid-Atlantic corridor in the late eighties is captured here, from the Baltimore harbor to the Blue Ridge foothills. Researchers can trace the sprawling footprints of Aberdeen Proving Ground, the historic grounds of Gettysburg National Military Park, and the winding Susquehanna River. - 1994 Map of Seneca, 1998 Print
1994 Seneca1998 Print · USGSThe Potomac River corridor in the mid-1990s showcases a landscape where historical navigation and modern conservation meet. Researchers can trace the path of the Chesapeake and Ohio Canal Towpath and locate local landmarks like Dranesville Tavern Park and Arnon Ch.
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