firefall

Etymology
🇰🇲, modelled on.

Noun

 * 1)  A summertime event held in  from 1872 to 1968, in which burning hot embers were spilled from the top of Glacier Point to the valley below, giving the appearance of a glowing waterfall.
 * 2) The phenomenon whereby Horsetail Fall, a seasonal waterfall in Yosemite National Park, is illuminated by the sunset so that it glows orange-red.