At Fort Simcoe, immediately south of the Indian agency, on the north edge of the "scab land," overlooking a small ravine, is a large pit surrounded by an embankment of earth, the remains of a semi-subterranean house. Perhaps an eighth of a mile south of this, on higher "scab land" was a rather low long mound upon which were several piles of stone that probably marked graves. This mound was lower and more oblong than the usual dome in which such graves were made. Mrs. Lynch, who pointed these out has excavated similar piles at this place and found them to mark graves. We were informed that chipped implements were frequently found along the Yakima River at a point near Prosser. Above Kennewick, while digging a flume, a number of graves were discovered, from which Mr. Sonderman made his collection. Some of these graves contained modern material (p. 111). On the surface of the western beach of the Columbia at Kennewick and on the flat land back of it we found chips of material suitable for making chipped implements, and a large pebble, probably a net sinker.[22] These, together with the fact that Mr. D. W. Owen has also frequently found specimens here, suggest that this place was an ancient camping ground. That Lewis and Clark saw Indians here and in the vicinity, as well as that the Indians still camp here on the beach of the river, sheltered from the wind by the bank and depending upon the river driftwood for their fuel, strengthens this suggestion. Specimens have been found on the large island in the Columbia at the mouth of the Yakima. (See p. 64.) At a point four miles below Kennewick or perhaps a mile below a point opposite the mouth of the Snake, a grave which contained material of white manufacture is said to have been discovered by a man while hauling water up the bank of the Columbia. [22] See p. 30. Schoolcraft states[23] that there was an earthwork on the left bank of the Lower Yakima on the edge of a terrace about fifteen feet high a short distance from the water. This terrace was banked on either side by a gully. This consisted of two concentric circles of earth about eighty yards in diameter by three feet high, with a ditch between. Within were about twenty "cellars", situated without apparent design, except economy of room. They were some thirty feet across, and three feet deep. A guide stated that it was unique and made very long ago by an unknown people. Outside, but near by, were other "cellars" in no way differing from the remains of villages of the region. What may be an earthwork near by is described by Schoolcraft[24] as follows: "The Indians also pointed out, near by, a low hill or spur, which in form might be supposed to resemble an inverted canoe, and which he had said was a ship." Schoolcraft suggests a possible relation of this to the mounds of the Sacramento Valley and continues:--