Smaller complexes such as secondary walls surrounded this wall; these secondary walls ran down to the canal.[2] An interesting characteristic in this area was the large rock-cut rooms with mud-brick structures constructed in front of them. One of these rooms was found to have a remarkable doorway with triangular stone projections mirrored on each side.[5] The rock-cut rooms interconnected to room further in the walls. Each of these rooms was cut at differing levels in a semi-circular pattern.