Signal Corps U.S.A.
Cumberland Township, Adams County, Pennsylvania
Marker Inscription
Memorial Tablet to the Signal Corps U.S.A. which through valiant and heroic services at Little Round Top July 2-4 1863 and on many historic battle fields throughout the war of 1861-1865 contributed so greatly to the success of the Union Armies.
The Story
This memorial tablet honors the U.S. Signal Corps for its service at Little Round Top on July 2–4, 1863, and across the battlefields of the Civil War. From the heights, signal officers used flags to relay observations of enemy movements, giving Union commanders a crucial view of the field. The Signal Corps was then a young branch, and Gettysburg showcased the value of rapid battlefield communication.
Why it matters
It commemorates the birth of modern military signaling in America, when visual communication from high ground became a genuine instrument of command.
The story behind this marker
AI contextThe era
In the middle of the nineteenth century, armies still moved and fought largely as they had for generations — by the sight of the enemy and the sound of the guns. Commanders struggled to know what was happening beyond the next ridge, and a general's view of the battlefield was often no wider than his own eyes could reach.
The Civil War arrived just as that was beginning to change. This memorial tablet honors the United States Signal Corps, a young branch of the army whose work at this battle in July 1863 showed what a difference timely information could make.
The setting could hardly have been better for their craft. The Union left rested on high, rocky hills, and from those heights a trained observer could see for miles across the surrounding country. Elevation, in the hands of the Signal Corps, became a genuine military asset.
People & events
From the crest of Little Round Top and other commanding points, signal officers watched the enemy and passed what they saw back to Union commanders. Their tool was the signal flag, waved in a coded system of motions that could spell out messages across distances far too great for a shouted order or a galloping courier.
The tablet records their service at Little Round Top on July 2 through 4, 1863, and "on many historic battle fields" of the war. That phrasing is deliberate: the men being honored did not fight in one place only. They served wherever high ground and a clear line of sight let them turn observation into intelligence.
On a battlefield this large and this confused, the ability to report enemy movements quickly was worth a great deal. A signal station on the heights could warn of an approaching column or a shifting attack, giving commanders precious minutes to respond — and minutes, in a battle of this scale, could decide the fate of an entire flank.
Its place in the American story
This tablet commemorates something easy to overlook amid the cannon and the charges: the birth of modern military communication in America. The Signal Corps was then a new organization, and the war was its proving ground.
The method these men used — visual signaling from high ground, message by flag — belongs to a longer story that runs from ancient beacon fires to the electric telegraph and, eventually, to radio. What was novel here was the systematic, professional use of visual signaling as a genuine instrument of command, integrated into the way a great army fought.
That is why the memorial calls their contribution one that added "so greatly to the success of the Union Armies." It honors not a single heroic charge but a capability — the power to see, and to share what was seen — that would only grow more important in every war that followed.
If you visit
Take a moment here to look up, and out. The whole point of the Signal Corps was the view, so the best way to appreciate this tablet is to notice how far you can see across the countryside from the surrounding heights.
Imagine a small knot of officers on an exposed hilltop, one man sweeping a flag through the air in long, deliberate arcs while another reads the enemy's movements through a glass. They were not hidden; to signal, they had to be seen, which meant standing in plain view of the fighting below.
On a battlefield tour crowded with monuments to infantry and artillery, this memorial is a quieter, more unusual stop. Pair it with a visit to the high ground it honors, and you'll come away with a fresh sense of how nineteenth-century commanders fought to simply understand the battle unfolding in front of them.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
Plan your visit
NearbyMake a day of it — museums, food, and places to stay near this marker.
Museums & culture
- Gettysburg Museum1.4 mi away
- Ford Motor Company Fund Education Center1.5 mi away
- Lincoln Train Museum1.8 mi away · 426 Steinwehr Avenue, Gettysburg, PA
- Gettysburg Heritage Center1.9 mi away · 297 Steinwehr Avenue, Gettysburg, PA
- Battlefield Military Museum1.9 mi away
- Gettysburg Diorama & History Center2.0 mi away · 241 Steinwehr Avenue, Gettysburg, PA
Attractions
- John Eisenhower Bridge1.8 mi away · Waterworks Road
- Sachs Covered Bridge2.1 mi away
- Sachs Covered Bridge2.1 mi away · Waterworks Road, Gettysburg, PA
Food & drink
- Reid's Winery Cider House2.3 mi away · 400 Baltimore Street, Gettysburg, PA
- Hong Kong2.6 mi away
- Tania's Mexican Restaurant2.6 mi away
- Garryowen Irish Pub2.6 mi away · 126 Chambersburg Street, Gettysburg, PA
- Blue & Gray Bar & Grill2.6 mi away · 2 Baltimore Street, Gettysburg, PA
- Ploughman Cider Taproom2.6 mi away · 14 Lincoln Square, Gettysburg, PA
Places to stay
- Holiday Inn Express & Suites1.7 mi away · 1971 Gettysburg Village Drive, Gettysburg, PA
- Comfort Suites1.8 mi away · 945 Baltimore Pike, Gettysburg, PA
- Best Western1.8 mi away · 301 Steinwehr Avenue, Gettysburg, PA
- Quality Inn Gettysburg Battlefield1.9 mi away · 380 Steinwehr Avenue, Gettysburg, PA
- Colton Motel1.9 mi away · 232 Steinwehr Avenue, Gettysburg, PA
- City Express2.0 mi away · 1857 Gettysburg Village Drive, Gettysburg, PA
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Related events
- · Battle of Gettysburg
Themes & tags
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