There was some interesting lichen on the trees. At first glance I thought it was paint but after doing a tiny bit of research ( http://www.thebiologyzone.com/reindeer-lichen.html ), it appears to be just a different variety of reindeer lichen.
Very interesting. Lichens, mosses, and fungi are all areas in which I am spectacularly uninformed but I still enjoy looking at their many different colours and forms.
@blueberry1222 The lichen in Arizona (northern) is usually flat so to find it here in Oregon with 3D bits is very cool.