We went to Dee Wright Observatory and Little Belknap (one of the bumps on the left above). It's a lava field; Belknap crater (below) is a shield volcano. Little Belknap is a cinder cone (with a lava tube at the top). T
The Cascades made their own weather. When we left for the mountains, it was fairly clear. As we arrived, clouds formed and the temperature dropped about five or ten degrees (climbing up to the top of Little Belknap probably contributed).
The North Sister was visible when we first showed up.