Covert Way

or Covered Way . Is a road or broad path outside the fo e or moat of a fortified place, between the counterscarp and the glacis. It is usually about 30 feet wide, and sunk so far below the crest of the glacis that soldiers standing upon it cannot be seen by the besiegers; hence the name. The covert way is broad enough to allow troops to form on it, either to act defensively or make sorties; and to increase this accommodation enlarged portions, called places of arms , are made at certain spots.