Lichens on Red Rock Coulee boulder

The Lichens that were growing on the huge, red rock concretions at Red Rock Coulee, in Southern Alberta, were just so beautiful. No doubt just common ones, but they were huge and colourful. Is the orange lichen Xanthoria elegans? Taken on 20 September 2013, the first day of a four-day trip with a couple of friends, travelling as far as Cypress Hills, where we stayed in a rustic cabin for three nights. We called in at Red Rock Coulee again on our way home to Calgary, but that time we climbed down into one of the coulees to look for mosses and lichens - and anything else of interest and beauty.