As we climbed out of the Huancahuanca Valley we noticed no evidences of ancient agricultural terraces, either on the sides of the valley or on the alluvial plain which has given rise to the town of Lampa and whose products have made its people well fed and energetic. The town itself seems to be of modern origin. One wonders why there are so few, if any, evidences of the ancient régime when there are so many a short distance away in Colta and the valley around it. One cannot believe that the Incas would have overlooked such a fine agricultural opportunity as an extensive alluvial terrace in a region where there is so little arable land. Possibly the very excellence of the land and its relative flatness rendered artificial terracing unnecessary in the minds of the ancient people who lived here. On the other hand, it may have been occupied until late Inca times by one of the coast tribes. Whatever the cause, certainly the deep canyon of Huancahuanca divides two very different regions. To come in a few hours, from thickly terraced Colta to unterraced Lampa was so striking as to give us cause for thought and speculation. It is well known that in the early days before the Inca conquest of Peru, not so very long before the Spanish Conquest, there were marked differences between the tribes who inhabited the high plateau and those who lived along the shore of the Pacific. Their pottery is as different as possible in design and ornamentation; the architecture of their cities and temples is absolutely distinct. Relative abundance of flat lands never led them to develop terracing to the same extent that the mountain people had done. Perhaps on this alluvial terrace there lived a remnant of the coastal peoples. Excavation would show. Scarcely had we climbed out of the valley of Huancahuanca and surmounted the ridge when we came in sight of more artificial terraces. Beyond a broad, deep valley rose the extinct volcanic cone of Mt. Sarasara, now relatively close at hand, its lower slopes separated from us by another canyon. Snow lay in the gulches and ravines near the top of the mountain. Our road ran near the towns of Pararca and Colcabamba, the latter much like Colta, a straggling village of thatched huts surrounded by hundreds of terraces. The vegetation on the valley slopes indicated occasional rains. Near Pararca we passed fields of barley and wheat growing on old stone-faced terraces. On every hand were signs of a fairly large population engaged in agriculture, utilizing fields which had been carefully prepared for them by their ancestors. They were not using all, however. We noticed hundreds of terraces that did not appear to have been under cultivation recently. They may have been lying fallow temporarily.