Interior Fort

Interior Fort (HM2SE)

Location: Knoxville, MD 21758 Washington County
Country: United States of America

N 39° 20.528', W 77° 43.162'

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Inscription
You are standing inside the Interior Fort, facing its north wall - the most imposing earthwork on Maryland Heights. This nine-foot-high parapet and accompanying ditch defended the crest from attack from the north. The five embrasures which cut through this wall served as artillery positions for howitzer guns, and later, 30-pounder Parrott Rifles.

A Union recommendation that "all plateaus or gentle slopes between the crest and Harpers Ferry be held" suggests the purpose and origin of the Interior Fort. As a rectangular earthwork, its defensive position included part of the mountain's crest and a narrow plateau just below. Built during the winter of 1862-1863, it borders the Exterior Fort on the west and encompasses the Stone Fort within its southeast corner.

Archaeological surveys recorded thirteen powder magazines on Maryland Heights, three within this fort. Used to store gun powder and shells, these 30'x20' rectangular excavations were dug to a depth of eight feet, supported by a heavy timber superstructure and covered with earth and sod.

Working around a powder magazine could be hazardous, especially to the untrained but enthusiastic soldier, as revealed in this passge by Joseph Barry, a local citizen:
"A company of them [the Hundred-Day Men from Ohio] were preparing dinner and, not having anything convenient on which to build their fire, they procured from an ammunition wagon several large shells on which they piled their wood which was soon ablaze. 'Round the fire they all squatted... Soon a terrific explosion shook the surrounding hills, sending all the culinary utensils flying over the tree tops and, unfortunately, killing or wounding nearly every man of the group."
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Details
HM NumberHM2SE
Tags
Marker ConditionNo reports yet
Date Added Monday, September 8th, 2014 at 7:07am PDT -07:00
Locationbig map
UTM (WGS84 Datum)18S E 265646 N 4358271
Decimal Degrees39.34213333, -77.71936667
Degrees and Decimal MinutesN 39° 20.528', W 77° 43.162'
Degrees, Minutes and Seconds39° 20' 31.68" N, 77° 43' 9.72" W
Driving DirectionsGoogle Maps
Area Code(s)301
Closest Postal AddressAt or near 1215 Hoffmaster Rd, Knoxville MD 21758, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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