Map of the Amalucansite basedon the aerial photographillustratedon page 210. The lines apparenton the photographare indicatedwith stippling. closelythe differencesin the soil color in plowed fields and by studying the differences in vegetation growth. Two, wherever these lines crossed modern milpa borders, the ground had a slightly higher elevation. Since we had found no pottery other than that of the Preclassic epoch, we proposed the hypothesis that these lines represented some cultural features of that period. A further check with the current owner of the Hacienda Amalucan, Sr. Hugo Pederson, indicated that the field boundaries had been much the same as they are today for many, many years. We decided that excavations should be made to test what culture and epoch the lines stemmed from and to find out what the lines were. Excavation began in January of 1965 with the generous support of the American Philosophical Society and the Office of Research and Proj211