In the Yosemite National Park in the United States of America, a very unique natural phenomenon occurs. If you are in the right place at the right time and the circumstances are just right, you can see the special phenomenon. The water of the Horsetail Fall seems to be on fire for a short period of time in the year, the last two weeks of February. If a lot snow has fallen, it is warm enough to melt the snow and the sunlight shines over the rocky wall during clear sunset, the waterfall will color orange.
source: https://juistmagazine.nl