On October 18th the Corps started the descent of the Columbia River through Wallula Gap, top left and above. Early the next morning, Walla Walla Chief Yellept, with a 20 man entourage, arrived in camp just west of the Walla Walla River confluence. The Captains promised a longer visit on the return journey (see lct253). The journals don't mention the Cayuse Sisters, top right, a significant local native landmark. I followed US HWY 12 across the Walla Walla River to US HWY 730 west.