Prior to the Navajos entering service, West Coast operated Piper Aztecs, which I suspect may have been provided by Piper as an interim aircraft until the Navajos could be delivered. In the January 16, 1967 timetable, it appears that 2 Aztecs were in use, one operating between Roseburg and Eugene, and the other connecting Sun Valley and Burley/Rupert to Twin Falls.
|West Coast Airlines January 16, 1967 timetable|
|Aztec service in January 16, 1967 timetable (click to enlarge)|
The Navajos, dubbed "Miniliners", operated with a single pilot and carried up to 7 passengers. They entered service in the Spring of 1967, and by the end of the year, all 4 were in service, concentrated on the same areas served by the Aztecs, Southern Idaho and Western Oregon. The December 1, 1967 issue shows that in Idaho, the Navajos connected the smaller communities to Boise and Salt Lake City, while in Oregon, Bend/Redmond and Roseburg both saw service to Eugene and Portland. Additionally, the 2 service areas were connected by offering a daily Boise - Portland flight (via Payette/Ontario and Baker) that allowed the exchange of equipment.
|West Coast Airlines December 1, 1967 timetable|
|Navajo "Miniliner" service in December 1, 1967 timetable (click to enlarge)|
In 1968, West Coast Merged with Bonanza Air Lines and Pacific Air Lines to from Air West. At first, Air West continued to utilize the Navajos in much the same way as West Coast, providing 3 daily flights on a number of those routes.
|Air West February 1, 1969 timetable|
|Navajo Service to Sun Valley|
|Navajo Service to Roseburg, OR|