If I could add just a little to what has been said. Don't get discouraged if you are not seeing a lot of the older rams during the summer and early fall. They seem to just appear among the ewes about mid to late October.
Use the summer to learn access and vantage points. Take note of where you can cross a cliff or canyon. Spotting a ram and then getting to where he is are two different issues.
Use the time to help your eyes and spotting techniques adjust to finding sheep.
Even if you don't see rams during the summer and early fall, check back with the herds of ewes. The rams will come looking for them.
There are groups of rams I can find in the summer, and others I never see until later. The later into the season you wait the better the hunting will become. It is easy to say and hard to do, but try and not get discouraged even if you haven't seen a good ram and it is toward the end of the season.
Good Luck.