Kennewick is located on the western side of the Columbia River about six miles below the mouth of the Yakima. It is opposite Pasco, which is about three miles above the mouth of Snake River. The place is only 366 feet above the sea level and except where irrigation has been practised, there are no trees in sight, the vegetation being that typical of the desert among which are sagebrush, grease-wood and cactus. Lewis and Clark, when here on their way to the Pacific Coast, October 17, 1805,[13] saw the Indians drying salmon on scaffolds for food and fuel. Captain Clark said, "I do not think [it] at all improbable that those people make use of Dried fish as fuel. The number of dead Salmon on the Shores & floating in the river is incrediable to say ... how far they have to raft their timber they make their scaffolds of I could not learn; but there is no timber of any sort except Small willow bushes in sight in any direction." [13] Lewis and Clark, III, p. 124. Sentinal Bluffs is the name given to both sides of the gap where the Columbia River breaks through Saddle Mountains. It is a short distance above the head of Priest Rapids. Crab Creek empties into the Columbia from the east on the north side of these mountains. On the western side of the river, between the Bluffs and the head of Priest Rapids, there is a flat place of considerable area, portions of which the Columbia floods during the winter. Going northwest from here to Ellensburg, the trail leads up a small valley in which are several springs surrounded by some small trees. One ascends about 2000 feet to the top of the divide and then descends perhaps 1000 feet into the Kittitas Valley. ARCHAEOLOGICAL SITES.