I think Oregon is a bad spot to view it. The weather (yes, even in summer) is too unpredictable and it's too close to populated coastal areas.
Wyoming is the way to go, or western Nebraska. Don't expect to get hotels, but camping on a rancher's land is easy, and the arid climate in the summer minimizes chances of cloud cover.
Wyoming is the way to go, or western Nebraska. Don't expect to get hotels, but camping on a rancher's land is easy, and the arid climate in the summer minimizes chances of cloud cover.