This dog, drawn by Alfred Agate (1812-1846), who was one of two prominent American artists who accompanied the U.S. Exploring Expedition commanded by Lieutenant Charles Wilkes in 1838-1842, somewhat resembles Lewis's description of the typical dog seen among the Indians in the vicinity of Fort Clatsop. (Moulton, Journals, 16 February 1806.)
Chinook Indian Dogs
The Indian dog is usually small or much more so than the common cur. they are party coloured [parti-colored; having patches of contrasting color; pied]; black white brown and brindle are the most usual colours. the head is long and nose pointed eyes small, ears erect and pointed like those of the wolf, hair short and smooth except on the tail where it is as long as that of the curdog and streight. the natives [Clatsops] do not eat them nor appear to make any other use of them but in hunting the Elk.