Glossary of Defined Terms

Gorge

Original Image Courtesy Library of Congress HABS/HEAR CollectionIn permanent fortifications and enclosed field fortifications (such as star forts, bastion forts, and redoubts) the gorge was taken as either the front of fortification that contained the main entrance or sally port of the fortification or the rear of an outwork commanded by another outwork or the enceinte. The gorge of a bastion and other salient trace in a continuous line of rampart was taken as a line produced from the interior extremity of one flank to the other. In unenclosed field fortifications such as continuous lines of works, lunettes, and redans, the gorge was considered to be the rear of the fortification or a front of fortification that was not shielded by a continuous parapet.

A demi-gorge was understood as one-half the gorge of a unenclosed field work or salient element in the trace of a permanent fortification. The division of a gorge into two demi-gorges was usually determined by the point of intersection of the gorge with either an oblique or right radius of the polygon of fortification.

January, 2003