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Mt. Airy in Philadelphia in Philadelphia County, Pennsylvania — The American Northeast (Mid-Atlantic)
 

Germantown Ave. Electrification

Centennial
1894 - 1994

— August 12th —

 
 
Germantown Ave. Electrification Marker image. Click for full size.
Photographed by Devry Becker Jones (CC0), January 25, 2025
1. Germantown Ave. Electrification Marker
Inscription.
Rte 23
Incorporated as a horse drawn car line on April 21, 1858, the Germantown passenger railway became the longest trolley line in the world. (12.7 mi.)
 
Topics. This historical marker is listed in these topic lists: AnimalsRailroads & Streetcars. A significant historical date for this entry is April 21, 1858.
 
Location. 40° 3.165′ N, 75° 11.144′ W. Marker is in Philadelphia, Pennsylvania, in Philadelphia County. It is in Mt. Airy. It is on Germantown Avenue (County Road 4007) south of Slocum Street, on the left when traveling south. Touch for map. Marker is at or near this postal address: 6723 Germantown Ave, Philadelphia PA 19119, United States of America. Touch for directions.

Regionally, this marker is in Southeast Pennsylvania. It is also in the American Northeast and in the Mid-Atlantic. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Haudenosaunee (Iroquois) Confederacy, New Netherland, and one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Four Patriots of the American Revolution (about 400 feet away, measured in a direct line); Germantown Meetinghouse (approx. 0.2 miles away); Church of the Brethren (approx. Ό mile away); Battle of Germantown (approx. 0.3 miles away); Barn & Carriage House (approx. 0.4 miles away); Work at Cliveden (approx. 0.4 miles away); Kitchen Dependency & Wash House (approx. 0.4 miles away); Revolutionary War Witness Tree (approx. 0.4 miles away). Touch for a list and map of all markers in Philadelphia.
 
Another marker is no longer nearby. Cliveden (was approx. 0.4 miles away but has been permanently removed).
 
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Germantown Ave. Electrification Marker as seen from Trolley Car Park image. Click for full size.
Photographed by Devry Becker Jones (CC0), January 25, 2025
2. Germantown Ave. Electrification Marker as seen from Trolley Car Park
Signage for Trolley Car Park image. Click for full size.
Photographed by Devry Becker Jones (CC0), January 25, 2025
3. Signage for Trolley Car Park
 
 
Credits. This page was last revised on October 19, 2025. It was originally submitted on January 26, 2025, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 133 times since then and 22 times this year. Photos:   1, 2, 3. submitted on January 26, 2025, by Devry Becker Jones of Washington, District of Columbia.
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Jun. 8, 2026