Caught this one on a nice hike not too long ago! These kinds of clouds are called "Lenticular" Clouds and I see them from time to time, they are uncommon but not that rare around where I live. Many people think they look like saucers or spacecraft that are like cloaked in the clouds or what not, heh.. And.. I try to stay open minded. :) But I think they're just clouds.
They do definitely give a unique impression though! And it's always cool in my opinion when I see one floating through the sky!
This was filmed on a Galaxy 3 phone in Sedona Arizona, thanks for stopping by and taking a look! :)
Steepshot