Check out the argillite boulder in the left midground of this GigaPan, which I’ve showed here before. It was taken at the Icefields Center parking area in Jasper National Park, Alberta:
There, you’ll find some lovely orange lichens, some iron oxide staining, some graffiti, and a fair number of sub-aligned glacial striations.
Also, at the top edge of the boulder, there’s a nice set of big hackles, running along the crest like the knobby backbone of a sea monster:
A wealth of lovely detail to be explored…