The fort's interior occupies three acres and is protected by a high rampart wall. Archeology indicates the flag pole mound is located where construction began. The top of the flagpole mound is the original surface level of Hardy's Bluff. The surrounding forest was completely cleared between mid-March and May 1862. The absence of trees provided no cover for approaching enemy units and created a challenge for the Union ships' guns to accurately fire upon the fort. It further eliminated the potential for splinters which could wound troops when cannon balls struck trees.