I see alot of folks recommend Eastern Oregon. I should clarify this a bit. Most of North Eastern Oregon at least outside the Nat'l Forest is private. That private ground, even for coyotes is not easy to gain access as most of it is leased out. Landowners that I have approached that are under contract with a lease are very hesitant to let anyone on for anything. Someone above did mention the Burns area and south of Burns. If your willing to travel that far, there is a lot BLM ground down that way that does have alot of coyotes. If you willing to go down to the south east corner, PM me and I can get your started. You may also consider the Fort Rock area.