UFO Sighting in Rifle, Colorado on June 4th 2015 – Object was unnoticed until photo taken was viewed at a later date.

I was taking a bike ride along Highways 13 and 325 north from Rifle to above Rifle Gap Reservoir. Stopped to take a photo of Rifle Gap from just below the reservoir using Nexus 5 smartphone. Upon viewing the photo after the ride noticed the image in the photo. Uncertain that it is anything other than airplane so hoped you have digital analyzing software that will enable you to determine identity. Don't know if it has any significance but I had a premonition before starting the ride that I would see an UFO which I thought quite strange.