As a spy in the Oregon Territory, and a Navy man, William A. Slacum was tasked with documenting the possessions of the British, but he also worked extensively to learn where the tribes were located. A map, Chart of the Columbia River, was created from his field sketches and survey notes from 1837, which tracks some 90 miles of the Columbia River. On the map is located a number of Native villages of the principal tribes of the Chinookan peoples. Kiesno is now the conventional spelling of this chief’s name. His is reported to have a principal village near St. … Continue reading William Slacum’s Chart of the Columbia River 1837