Dog Mountain, as you can learn from the link, is a 28oo foot mountain that gains 1000 feet in every half mile during the first part of the hike. Billy needed some personal time for reflection partway up, so he sat with his back to a tree and thought about life and work and why he was in a bad mood. Here is a photograph of him checking his messages, which was someone from PSU offering him two new classes. I made it to half a mile from the very top, which was about 3.3 miles each way. The view at the top was pretty great, and amazing because we'd started down at the bottom near the Columbia River.
Unfortunately, Billy had to put up with my groaning and whining all weekend anytime I walked up or down the stairs. He, of course, was fine. (All that mountain climbing in his past, no doubt.)