Ann Coulter not only was responsible for the Museum of Northern Arizona, but also for la Possada in Winslow and the Watchtower at Desert View, on the desert View drive, either from Flagstaff or the visitor center in the Grand Canyon. Her buildings harbor you, make you feel good. Her sense of place and material is wonderful.
In the watchtower, and in the other buildings I have seen, she uses strong local materials incorporating all the variations she can find: slate, pebbles, rocks.
Elements of surprise are petroglyphs, natural statues, wood, whatever would give the building beauty and substance.
I should have called this post Room with a View. She chooses cut outs, interesting perspectives and even adapts the shape of the windows to the landscape. That is respect for the spirits of the place. Her windows draw you out and immerse you in the grand beauty of nature.