Archaeologists do not just dig holes of random sizes until something is found. The dimensions of each hole is determined before excavation begins and is sectioned off with rope, usually in one by one meter units. Once the excavation starts the hole is dug down evenly in levels. It is imperative when digging the unit to keep all walls smooth and straight and to excavate soils of different colors within a level separately. These areas of different soil composition are designated as features and are caused by rodents, fire, organic material that has decayed and human activities. …
