Compiled by W.H. Dall, U.S. Coast Survey, from the latest authorities to illustrate a paper by Geo. Gibbs and under the direction of J.W. Powell. The map is a detailed examination of the Indian Tribes west of the Cascades. A legend provides the key to the coloring of the tribes. It identifies the tribes of Tsihali-Sel and Niskwalli-Sel (from the Selish Family), Tsinuk (Tsinuk Family), Klikatat (Sahaptin Family), Makah (Nutka Family), and the Owillapsh Tribe of the Tinneh Family. A note states that the official spelling of the tribal names are reduced to their phonetic value. Locates the Niskwalli, Swiwamish, Muckleshoot, Chelalis, and Shoalwater Indian Reservations, to name a few. The only railroad exists between Kalama and Tacoma.

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Condition: A

Issued folding, now pressed and backed with archival tissue. A short fold split in left margin has been repaired. Bright coloring and strong impression, a near fine example.