Besides the Glacier Hoodoos, you can get a good sense of the layering especially the Diorite Sill layer. It is everywhere about 100 feet thick, and thus can be used as a very accurate scale for determining the height of mountains on which it is discernible. See the chart on this page about the layers: http://www.nps.gov/history/history/onli ... 3/sec4.htm. Reminds me a bit of the Grand Canyon chart...

Diorite represents the only igneous rock present in the park. The sill formed by upward thrusting of a column of hot magma from the earth's mantle, climbing vertically until it found a weakness in the rock, allowing it to spread horizontally, like cake filling, throughout the entire region. The magma was so hot that it marbleized the rock immediately above and below the sill, as evidenced by the whitish coloration in these areas.