Mt. Shuksan and rising moon, Washington.

My daughter and I stopped here for a quick hike at the end of the day. I'd remembered some small rock-bound ponds along the trail and thought it would make for some nice photos. And then the moon rose!

The rock of Mt. Shuksan belongs to the Easton Terrane, which, after combining with several other terranes, was accreted to the western edge of North America during the Cretaceous. Some of Shuksan's rocks are blueschists, which form under conditions of high pressures and relatively low temperatures, typical of subduction zones. Mt. Shuksan lies within the North Cascades National Park.



On to the next photo: Unnamed Glacial Valley and Chilkat Range, Alaska.
Back to the last photo: Kautz and Nisqually Glaciers, Mt. Rainier, Washington.
Back to Ten favorite geology photos from 2015