Not only was the trail to Noble Knob dense with wildflowers, but there were endless views like this.
The lower, sharp peak to the left is Little Tahoma (11,138 feet high). The glacier on Little Tahoma and left to the picture edge is called Fryingpan Glacier.
A large glacier comes down from the high summit of Rainier and is split in two by the rocky wedge directly below the summit. The top of that wedge is called Steamboat Prow. A bit lower on the left is Mount Ruth. There is a smaller glacier in the wedge under Steamboat Prow, called Inter Glacier.
Of the large glacier coming down from the high summit of Rainier, the part that flows to the right side of "the wedge" is Winthrop Glacier. The part that flows to the left, and it is the larger part, is Emmons Glacier.
Between the main summit and Little Tahoma Peak there are some exposed rock formations. The larger rocky ridge is, I believe, Gibralter Rock (12,660 feet). Nearby rock outcrops include Disappointment Cleaver and Cathedral Rocks.
On the right side of the mountain there is a lot of exposed rock. The cliffs way up near the top are called Willis Wall. Ridges extending down include Curtis Ridge, Liberty Ridge, and Ptarmigan Ridge. I'm not sure if the cliffs of Mowich Face are quite visible from this angle.
Glaciers visible on the right side include the Carbon Glacier, Russell Glacier, and, I think, a bit of North Mowich Glacier at the far right.
(I may have to double check this info, take it with a grain of salt!)