Our next stop was close to the confluence of the Palouse and Snake Rivers. When the floodwaters came down the Palouse Valley and out into the Snake River Canyon, they hit the far wall of the canyon with tremendous force, sending water both down and up the Snake River valley. The waters backed up at least as far as Lewiston, Idaho, 130 km upriver. This picture is looking down the Snake River, with Midcanyon Bar on the far side of the river, below the basalt cliffs, extending across the entire width of this picture. Shoulder Bar wraps around the basalt cliffs on the far left side of this picture. (An outcrop in the gravels of Shoulder Bar is featured in the next picture).