Gorge (fortification)
Part of a military fortification
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Outworks with open gorges
Straith describes three commonly used classes of field work: "works open at the gorge, works enclosed all round and lines." He lists the following as works open at the gorge:[2]
Closed works are the redoubt, star fort and bastioned fort.[2]
Gorges of 'half-closed works' were usually closed either by a parapet or stockade.[3]