A mountain came down on a town in 1903 and the boulders are still where they stopped
At 4:10 on the morning of 29 April 1903 the east face of Turtle Mountain came down on the sleeping town of Frank: around 44 million cubic metres of limestone, about 110 million tonnes of it. It buried the eastern edge of the town, the Canadian Pacific line and part of the coal mine, and killed somewhere between 70 and 90 people, most of whom are still under the rock. The mountain is an anticline of limestone lying on softer shale and sandstone, with water freezing in its fissures and a coal mine working underneath, and the people who were here first called it the mountain that moves. Highway 3 runs straight through the boulder field and the Frank Slide Interpretive Centre stands above it, a Provincial Historic Site taking over 100,000 visitors a year. AND THE MOUNTAIN IS STILL MOVING. The Alberta Geological Survey took over the long-term running of the mountain-monitoring system on 2 April 2005 and keeps a sensor network on the South Peak feeding a near real-time data stream, and what it records is slow, long-term creep that tracks with temperature. Stand in the rock and understand that the instruments above you are not a memorial.
Other places on the map within a couple of hours.
