Battery Decatur and Disappearing Guns

Battery Decatur and Disappearing Guns (HM4YW)

Location: Fort Washington, MD 20744 Prince George's County
Country: United States of America

N 38° 42.77', W 77° 1.951'

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American coastal defenses were modernized from the 1890s to 1910 with the development of the Endicott System. Emphasis in military tactics shifted the masonry fortifications to more effective weapons based on rifled steel guns, improved breech-loading systems, better propellants (gunpowder), and reinforced concrete gun emplacements.

Here you will see the remains of Battery Decatur, a reinforced concrete emplacement completed in 1891. It mounted two 10-inch disappearing guns similar to the Fort Monroe rifled gun shown in the photographs below. The lower rooms of the battery were for shot, shell, and powder storage with cranes and hoists that moved the heavy ammunition up to the gun platforms.
HM NumberHM4YW
Marker ConditionNo reports yet
Date Added Thursday, September 11th, 2014 at 2:46pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 323283 N 4286870
Decimal Degrees38.71283333, -77.03251667
Degrees and Decimal MinutesN 38° 42.77', W 77° 1.951'
Degrees, Minutes and Seconds38° 42' 46.20" N, 77° 1' 57.06" W
Driving DirectionsGoogle Maps
Area Code(s)301, 240
Closest Postal AddressAt or near 971 Unnamed Road, Fort Washington MD 20744, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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