[Today this reach has been inundated by the waters of Lake Wallula, the reservoir behind the McNary Dam. The Burbank Slough - part of the McNary National Wildlife Refuge - dominates the eastern bank of the Columbia and two islands which remain offshore of Wallula are Crescent Island and Badger Island.]    

at 16 miles from the point [junction of the Snake River with the Columbia, location of today's Sacajawea State Park] the river passes into the range of high Countrey at which place the rocks project into the river from the high clifts [Wallula Gap] which is on <both> the Lard. Side about 2/3 of the way across those of the Stard Side about the Same distance, the Countrey rises here about 200 feet above The water and is bordered wth black rugid rocks [Columbia River Basalt],     at the Commencement of this high Countrey [Wallula Gap] on Lard Side a Small riverlet falls in [Walla Walla River] which appears to passed under the high County in its whole cose     Saw a mountain bearing S. W. conocal form Covered with Snow [Mount Hood, Oregon].    passed 4 Islands, at the upper point of the <first> 3rd is a rapid, on this Island is two Lodges of Indians, drying fish, on the fourth Island Close under the Stard. Side is nine large Lodges of Indians Drying fish on Scaffolds as above [Yellepit area]; at this place we were called to land, as it was near night and no appearance of wood [Lewis and Clark are in the Port Kelley area, where today the islands offshore are under the waters of Lake Wallula.],     we proceeded on about 2 miles lower to Some willows, at which place we observed a drift log     formed a Camp on the Lard Side [Spring Gulch] under a high hill nearly opposit to five Lodges of Indians; Soon after we landed, our old Chiefs informed us that the large camp above "was the Camp of the 1st Chief of all the tribes in this quarter [Chief Yellepit], and that he had called to us to land and Stay all night with him, that he had plenty of wood for us &" This would have been agreeable to us if it had have been understood perticelarly as we were compelled to Use drid willows for fuel for the purpose of cooking, we requested the old Chiefs to walk up on the Side we had landed and call to the Chief to come down and Stay with us all night which they did;     ... we made 21 miles to day.

We saw likewise abundance of Scaffolds with Salmon drying on them. The Salmon were very plenty as we came along, & a number of them were jumping in the River as we passed along also, & a number of dead Salmon, lay all along the shores in the River. The Latitude at the forks of the two Rivers we last left taken by Captain Lewis & Captain Clark being fully ascertained is 46° 15' 13 7/10s North as before mentioned.— We continued on our way, & passed over several bad rapid places. We also passed several large Camps of Indians, who had Lodges built of flags, and they had abundance of Salmon. These Indians had a vast number of Horses. We saw no Timber of any account, & were forced to make use of dry Willows for fuel to cook with, some few of which grew along the Shore, where we encamped. We encamped on the South side of the River where a number natives came shortly after in their Canoes to see us. We came 17 Miles this day, our Course still being West.—