smiddy, I am not defending the discredited bible account, just citing it to prove it's wrongness.
Mist of course is a condensation due to the higher relative humidity in an air mass that has been cooled near the ground by radiating into the ~ 5 Kelvin temperature of space overhead. As I mentioned, the Colorado and other rivers have been running and cutting through rock for millions of years, never mind the 6000 years of bible's-human existence.
PS: There is much water underground in aquifers, and it percolates up in springs, geysers, and not just in Iceland, Yellowstone but also NZ?
not endorsing, but refuting. through sarcasm.