Power of the Potomac

Power of the Potomac (HMDJ0)

Location: Harpers Ferry, WV 25425 Jefferson County
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Country: United States of America
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N 39° 19.455', W 77° 43.805'

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The Potomac River races east past you with enough mountain-carving power to punch through the entire Blue Ridge to your right. Such energy easily powered the entire national armory from the early 1800s until 1861. Diverted by a dam upstream, river water flowed through the armory canal, dropping 22 feet over 1.5 miles. This falling water coursed through headraces (entry points) and followed underground tunnels, turning water wheels and turbines as it flowed through pipes in the armory factories. Finally the water exited the armory grounds through the tailraces (exit points) to rejoin the Potomac River.

Water flowed into the armory buildings like the Stock House (above) through a series of tunnels and pipes, turning gears and powering machinery on the factory floors.
HM NumberHMDJ0
Placed ByHarpers Ferry National Historic Site - National Park Service - Department of the Interior
Marker ConditionNo reports yet
Date Added Monday, September 29th, 2014 at 11:35am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 264662 N 4356314
Decimal Degrees39.32425000, -77.73008333
Degrees and Decimal MinutesN 39° 19.455', W 77° 43.805'
Degrees, Minutes and Seconds39° 19' 27.30" N, 77° 43' 48.30" W
Driving DirectionsGoogle Maps
Area Code(s)304
Closest Postal AddressAt or near 118-198 Potomac St, Harpers Ferry WV 25425, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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