Commemorating those who died in the depths of an Alberta coal mine — Journalism On June 13, 2019, 189 coal miners died in an explosion in the Hillcrest Mine in southwestern AlbertaMy story marks the 100th anniversary of Canada's worst mining disaster and tells the stories of the families still haunted by it. Hillcrest Mine Disaster Calgary Herald June 13 2014 (PDF 7.2 MB)