22nd May 2021 – Twenty one runners died after an extreme weather descended on a mountain trail race in Baiyin City in Gansu province, North West of China. The Huanghe Shilin (Yellow River Stone Forest) 100km trail race which features winding rocky path along the Yellow River, began that Saturday morning in sunny conditions. But within three hours of starting, the weather condition changed to freezing rain, hail and extreme winds, lashing participants in the high-altitude trail-ultra.