Lichen

Not as sharp as it should be, but it was taken on a very overcast, drizzly day, on 31 May 2013, when a small group of us went 170 km south of Calgary to the Whaleback area. Our meeting place was just off Highway 22, just north of the Oldman River. While waiting for everyone to arrive, I notieced this rather fine Lichen growing on a rock. I don't know the ID for it, but will be able to find out from Bryologist, Sandra Davis. I seem to remember Sandy saying it was a common Lichen.