Typical tourist side-trip to Zion after visiting Bryce Canyon. Object(s) unseen until reviewing cellphone pictures later in the car on the way home. My first reaction was,what the heck is that? Was something on the mountain reflecting in the camera lens, unobserved by me when I took the picture? This was unusual in that it was a cloudy day. Any actions or motions were unobserved. Reactions were all after the fact. Object was never seen visually, with or without the camera.