Darnestown in Montgomery County, Maryland — The American Northeast (Mid-Atlantic)
The Signal Corps and Wartime Communications
The Civil War
Red Hill in Georgetown Washington D. C. served as the main headquarters and training center for the Union Signal Corps. The Corps had 300 officers and 2,500 men and one of the highest casualty rates of any unit in the Union army.
Information was relayed in a chain called "Signal Tree Lane" extending form Harper's Ferry up-river and all the way down-river to Georgetown. On a clear day signals could be seen for 10 miles, but with rain and fog, visibility was obscured, which sometimes made this an unreliable means of communication.
A New York infantry officer remembered being sent to Darnestown to attend a school of instruction: "The men had been selected with great care for their physical, as well as mental ability...Most of the Twenty-eighth will remember the 'Chestnut-tree station' on the Magruder farm
Flags & Lights
Other than the Signal Corps, the only means of wartime communication at that time was by scouts of horseback, word of mouth form local residents, observation balloons, and telegraph lines.
From towers, building tops, tall trees, and platforms, the Signal Corps used flags and telescopes during the day and flares or torches at night to send coded messages.
The wig-wag system used signal flags of white with red square centers to provide important information during the war.
Erected 2012 by Montgomery Parks.
Topics. This historical marker is listed in this topic list: War, US Civil. A significant historical year for this entry is 1861.
Location. 39° 6.218′ N, 77° 17.452′ W. Marker is in Darnestown, Maryland, in Montgomery County. Marker can be reached from Darnestown Road (Maryland Route 28) east of Seneca Road (Maryland Route 112Touch for map. Marker is at or near this postal address: 14029 Darnestown Road, Gaithersburg MD 20878, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. The Civil War in Darnestown (here, next to this marker); Civil War Troops & Darnestown Residents (here, next to this marker); Darnestown: A Strategic Point of Defense (a few steps from this marker); Disease, Death, and Medical Discoveries During the Civil War (within shouting distance of this marker); Clues to the Past: Oral History and Archaeology (within shouting distance of this marker); A 19th Century Crossroads (within shouting distance of this marker); Andrew Small Academy (within shouting distance of this marker); The Origins of Darnestown (within shouting distance of this marker). Touch for a list and map of all markers in Darnestown.
Credits. This page was last revised on June 16, 2016. It was originally submitted on October 31, 2013, by Allen C. Browne of Silver Spring, Maryland. This page has been viewed 617 times since then and 65 times this year. Photos: 1, 2, 3, 4, 5, 6. submitted on October 31, 2013, by Allen C. Browne of Silver Spring, Maryland. • Bernard Fisher was the editor who published this page.