Clouds are one of my absolute favorite subject and I have been photographing clouds for quite a few years by now. I even published recently a very successful, upscale coffee table art book - simply titled "Clouds" - featuring more than 100 of my best cloud images. Please check my book out by following this link https://www.blurb.com/b/9637568-clouds
Locals and other Insider know the Wet Mountain Valley in Colorado as the "Valley of the Crazy Clouds" due to its special location of being squeezed in between the Rockies to the West and the Wet Mountains to the East. As a result, the area produces regularly highly unsual clouds - just like the strange cloud in this image, which looks like it was imported from another planet.