Chem trails

[Rick Nantais]

One of my all time favorite Arizona picture.

 

[AlanLichty]

Great example of a Lower Sonoran desert ecosystem. Those jet trails are almost the only thing resembling clouds in the skies. Nice B&W work.

 

[JimFox]

We call them Vapor trails here. But I thought that's what you were describing.

A great capture of the desert with them Rick.

My favorite is a few times I have caught them making a Tic-Tac-Toe pattern in the sky.