In 1873 explorer and pioneer William Butler travelling across the then unsettled Canadian Prairies wrote, No solitude can equal the loneliness of a night-shadowed prairie.” This is the Milky Way and night sky on a perfectly clear night, July 25, 2017, on the Canadian Prairies at Writing-on-Stone Provincial Park in Alberta, near the border looking south to the Sweetgrass Hills (West Butte) of Montana. The Milk River, which flows into the Missouri River, winds below. The site is sacred to the B