These pictures were taken along the Lower Snake River from the Lewis and Clark campsite of October 13, 1805 opposite Ayer, Washington in a little cove on the north side of the river, to their campsite of October 14th, 1805 which was on an island now under the waters of Lake Sacajawea, opposite Burr Canyon and just down river of Lower Monumental Dam." The picture of the Indian rock art is not in this area, but a good example of the kinds of rock painting the Corps saw along the way.