Been a long time since I've hunted the west side. I lived in the Independence/Monmouth area years ago and we hunted either family property outside Monmouth, Black Rock behind Falls City, Polk Talbot outside Dallas or up in the Valsetz area. I have never hunted around Lyon's.
Probably find the same brushy stuff that is all over the valley. Went with my son near Toledo seven or eight years ago. Diaster! Hills to steep for this old guy any more and lots of brush. On the up side though, my son told me that everyone that he knew that hunted elk outside of Newport got elk.
One of the most important components of deciphering a new hunting area is distinguishing between the summer and winter ranges for the game that you plan to pursue. Without knowing this you cannot make reliable assumptions about where the game will be come opening day. Knowing these areas will allow you to take the current weather (as well as the past couple weeks) and apply that to the landscape and make an educated guess as to where you might find that big buck or bull.
There are a couple ways...