 Several scholars have disputed this interpretation, suggesting that the area may instead be the location of an unfinished great house, or it could have been used for mixing mortar or raising frogs and freshwater shrimp.Soil analysis indicates that the field received water from both Chaco Wash and side canyons.Twenty-three similar fields have been detected in Chaco Canyon, but Chetro Ketl's is the only one that has been extensively surveyed.