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Lawrence Township in Mercer County, New Jersey — The American Northeast (Mid-Atlantic)
 

London Towers

 
 
London Towers Marker image. Click for full size.
Photographed by Richard Peterson, June 14, 2026
1. London Towers Marker
Inscription.
The concrete foundations are all that remain of AT&T's London Tower Array. The towers supported giant steel mesh curtains that were the actual antennas. They were built in a precise alignment to aim the powerful shortwave radio signals at a receiving station in England.

The London towers, 19 in total, were placed 250 feet apart. From end-to-end the length of the array was just short of a mile.

How High Were the Towers?
1-Story Ranch House (23 ft.)
Tower (180 ft.)
The Statue of Liberty (305 ft. including pedestal)

From Giant Towers to Wildlife Habitat
AT&T removed the London Array Towers in the late 1930s after less than ten years of service. However, the concrete foundations that once supported the towers still remain. If you look closely, the concrete foundation pads and plinths can be seen along the old service road.

( captions )
— Concrete plinths that once supported the towers.
— Construction of the London Towers, c. 1929. The winches in the foreground were used to raise and lower the steel mesh antenna curtains. Notice the concrete pads that supported each leg of the tower.
— The London Tower Array, c. 1929.
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The timber utility poles in the foreground provide a sense of the tremendous scale of the array.
 
Topics. This historical marker is listed in this topic list: Communications. A significant historical year for this entry is 1929.
 
Location. 40° 18.867′ N, 74° 44.33′ W. Marker is in Lawrence Township, New Jersey, in Mercer County. It can be reached from Cold Soil Road west of Keefe Road, on the left when traveling west. Located on the Lawrence Hopewell Trail, at Mercer Meadows Pole Farm. Touch for map. Marker is in this post office area: Lawrence Township NJ 08648, United States of America. Touch for directions.

Regionally, this marker is in Central Jersey and in Greater Princeton. 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 New Netherland and also one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within walking distance of this marker: The “Pole Farm” Map (a few steps from this marker); "Hello London" (a few steps from this marker);
Beams forming footprint of Building Two, with five Historical Markers including this one image. Click for full size.
Photographed by Richard Peterson, June 14, 2026
2. Beams forming footprint of Building Two, with five Historical Markers including this one
“Keep Mum - The World Has Ears” (a few steps from this marker); Going Silent (a few steps from this marker); The "Pole Farm" (within shouting distance of this marker); Pole Farm District (about 600 feet away, measured in a direct line); A Timeline of AT&T's Pole Farm (about 600 feet away); Arctic Parkway (approx. 0.9 miles away). Touch for a list and map of all markers in Lawrence Township.
 
Also see . . .  “Pole Farm” History – 1929 – 1975 - Hopewell Valley History Project.
Thanks to several contributors, the History Project site now has several pamphlets on the history and operation of the Lawrenceville Transmitting Center, and associated historical photos of the site and operation.
(Submitted on June 29, 2026, by Richard Peterson of East Windsor, New Jersey.) 
 
London Towers Marker image. Click for full size.
Photographed by Richard Peterson, June 14, 2026
3. London Towers Marker
 
 
Credits. This page was last revised on July 7, 2026. It was originally submitted on June 29, 2026, by Richard Peterson of East Windsor, New Jersey. This page has been viewed 14 times since then. Photos:   1, 2, 3. submitted on June 29, 2026, by Richard Peterson of East Windsor, New Jersey. • Michael Herrick was the editor who published this page.
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Aug. 9, 2026