Frank Slide

No, not the name of a person here. In 1903 there was a disaster in the town of Frank (west of Lethbridge, along the Crowsnest Trail, almost on the border with BC) when a chunk of Turtle Mountain suddenly collapsed and covered part of the town. There had been no warnings and about 70 people were killed. There were even miners underneath at the time but fortunately they survived, being able to dig their way out of the mine.
We visited on Saturday (5th Aug). As you can see from the picture, it's still obvious where the mountain collapsed and the "slide." What I was unprepared for was the remaining rocks which cover an area up to 3km. Some of the rocks were estimated to crash down on the town at a speed of around 120kmph. Rocks of all sizes and shapes spread out in a zone from the bottom of the mountain and it looked like the surface of the moon.