What is this?
The Mark of Zorro Mystery Cloud
I don’t know what caused this formation,
almost like an airport in the sky.
The sun was shining from just above the mountains to the east
behind me and to the right a bit),
and lit this thing up.
The cloud formation appeared to be just a few thousand feet up —
too low to be contrail caused, I would think.
I stopped an airport maintenance worker to get his opinion.
He couldn’t explain it either,
but thanked me for pointing it out to him.